516 lines
46 KiB
Plaintext
516 lines
46 KiB
Plaintext
//lemon parser file to generate sql parse by using finite-state-machine code used to parse sql
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//usage: lemon sql.y
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%name NewParse
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%token_prefix TK_
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%token_type { SToken }
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%default_type { SNode* }
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%default_destructor { PARSER_DESTRUCTOR_TRACE; nodesDestroyNode($$); }
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%extra_argument { SAstCreateContext* pCxt }
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%include {
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <stdbool.h>
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#include "nodes.h"
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#include "ttoken.h"
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#include "ttokendef.h"
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#include "astCreateFuncs.h"
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#if 0
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#define PARSER_TRACE printf("lemon rule = %s\n", yyRuleName[yyruleno])
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#define PARSER_DESTRUCTOR_TRACE printf("lemon destroy token = %s\n", yyTokenName[yymajor])
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#define PARSER_COMPLETE printf("parsing complete!\n" )
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#else
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#define PARSER_TRACE
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#define PARSER_DESTRUCTOR_TRACE
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#define PARSER_COMPLETE
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#endif
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}
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%syntax_error {
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if(TOKEN.z) {
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char msg[] = "syntax error near \"%s\"";
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int32_t sqlLen = strlen(&TOKEN.z[0]);
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if (sqlLen + sizeof(msg)/sizeof(msg[0]) + 1 > pCxt->pQueryCxt->msgLen) {
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char tmpstr[128] = {0};
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memcpy(tmpstr, &TOKEN.z[0], sizeof(tmpstr)/sizeof(tmpstr[0]) - 1);
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sprintf(pCxt->pQueryCxt->pMsg, msg, tmpstr);
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} else {
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sprintf(pCxt->pQueryCxt->pMsg, msg, &TOKEN.z[0]);
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}
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} else {
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sprintf(pCxt->pQueryCxt->pMsg, "Incomplete SQL statement");
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}
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pCxt->valid = false;
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}
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%parse_accept { PARSER_COMPLETE; }
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%left OR.
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%left AND.
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//%right NOT.
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%left UNION ALL MINUS EXCEPT INTERSECT.
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%left NK_BITAND NK_BITOR NK_LSHIFT NK_RSHIFT.
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%left NK_PLUS NK_MINUS.
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//%left DIVIDE TIMES.
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%left NK_STAR NK_SLASH NK_REM.
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%left NK_CONCAT.
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//%right NK_BITNOT.
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/************************************************ create database *****************************************************/
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cmd ::= CREATE DATABASE exists_opt(A) db_name(B) db_options(C). { pCxt->pRootNode = createCreateDatabaseStmt(pCxt, A, &B, C);}
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%type exists_opt { bool }
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exists_opt(A) ::= IF NOT EXISTS. { A = true; }
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exists_opt(A) ::= . { A = false; }
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%type db_options { SDatabaseOptions* }
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%destructor db_options { tfree($$); }
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db_options(A) ::= . { A = createDefaultDatabaseOptions(pCxt); }
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db_options(A) ::= db_options(B) BLOCKS NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_BLOCKS, &C); }
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db_options(A) ::= db_options(B) CACHE NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_CACHE, &C); }
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db_options(A) ::= db_options(B) CACHELAST NK_INTEGER(X)(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_CACHELAST, &C); }
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db_options(A) ::= db_options(B) COMP NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_COMP, &C); }
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db_options(A) ::= db_options(B) DAYS NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_DAYS, &C); }
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db_options(A) ::= db_options(B) FSYNC NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_FSYNC, &C); }
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db_options(A) ::= db_options(B) MAXROWS NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_MAXROWS, &C); }
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db_options(A) ::= db_options(B) MINROWS NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_MINROWS, &C); }
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db_options(A) ::= db_options(B) KEEP NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_KEEP, &C); }
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db_options(A) ::= db_options(B) PRECISION NK_STRING(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_PRECISION, &C); }
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db_options(A) ::= db_options(B) QUORUM NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_QUORUM, &C); }
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db_options(A) ::= db_options(B) REPLICA NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_REPLICA, &C); }
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db_options(A) ::= db_options(B) TTL NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_TTL, &C); }
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db_options(A) ::= db_options(B) WAL NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_WAL, &C); }
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db_options(A) ::= db_options(B) VGROUPS NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_VGROUPS, &C); }
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db_options(A) ::= db_options(B) SINGLESTABLE NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_SINGLESTABLE, &C); }
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db_options(A) ::= db_options(B) STREAMMODE NK_INTEGER(C). { A = setDatabaseOption(pCxt, B, DB_OPTION_STREAMMODE, &C); }
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/************************************************ create table *******************************************************/
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cmd ::= CREATE TABLE exists_opt(A) full_table_name(B)
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NK_LP column_def_list(C) NK_RP table_options(D). { pCxt->pRootNode = createCreateTableStmt(pCxt, A, &B, C, D);}
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%type full_table_name { STokenPair }
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%destructor full_table_name { }
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full_table_name(A) ::= NK_ID(B). { A = { .first = B, .second = nil_token}; }
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full_table_name(A) ::= NK_ID(B) NK_DOT NK_ID(C). { A = { .first = B, .second = C}; }
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%type column_def_list { SNodeList* }
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%destructor column_def_list { nodesDestroyList($$); }
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column_def_list(A) ::= column_def(B). { A = createNodeList(pCxt, B); }
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column_def_list(A) ::= column_def_list(B) NK_COMMA column_def(C). { A = addNodeToList(pCxt, B, C); }
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column_def(A) ::= column_name(B) type_name(C). { A = createColumnDefNode(pCxt, B, C, NULL); }
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column_def(A) ::= column_name(B) type_name(C) COMMENT NK_STRING(D). { A = createColumnDefNode(pCxt, B, C, &D); }
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%type type_name { SDataType }
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%destructor type_name { }
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type_name(A) ::= BOOL. { A = createDataType(TSDB_DATA_TYPE_BOOL); }
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type_name(A) ::= TINYINT. { A = createDataType(TSDB_DATA_TYPE_TINYINT); }
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type_name(A) ::= SMALLINT. { A = createDataType(TSDB_DATA_TYPE_SMALLINT); }
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type_name(A) ::= INT. { A = createDataType(TSDB_DATA_TYPE_INT); }
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type_name(A) ::= BIGINT. { A = createDataType(TSDB_DATA_TYPE_BIGINT); }
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type_name(A) ::= FLOAT. { A = createDataType(TSDB_DATA_TYPE_FLOAT); }
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type_name(A) ::= DOUBLE. { A = createDataType(TSDB_DATA_TYPE_DOUBLE); }
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type_name(A) ::= BINARY NK_LP NK_INTEGER(B) NK_RP. { A = createVarLenDataType(TSDB_DATA_TYPE_BINARY, &B); }
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type_name(A) ::= TIMESTAMP. { A = createDataType(TSDB_DATA_TYPE_TIMESTAMP); }
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type_name(A) ::= NCHAR NK_LP NK_INTEGER(B) NK_RP. { A = createVarLenDataType(TSDB_DATA_TYPE_NCHAR, &B); }
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type_name(A) ::= TINYINT UNSIGNED. { A = createDataType(TSDB_DATA_TYPE_UTINYINT); }
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type_name(A) ::= SMALLINT UNSIGNED. { A = createDataType(TSDB_DATA_TYPE_USMALLINT); }
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type_name(A) ::= INT UNSIGNED. { A = createDataType(TSDB_DATA_TYPE_UINT); }
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type_name(A) ::= BIGINT UNSIGNED. { A = createDataType(TSDB_DATA_TYPE_UBIGINT); }
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type_name(A) ::= JSON. { A = createDataType(TSDB_DATA_TYPE_JSON); }
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type_name(A) ::= VARCHAR NK_LP NK_INTEGER(B) NK_RP. { A = createVarLenDataType(TSDB_DATA_TYPE_VARCHAR, &B); }
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type_name(A) ::= MEDIUMBLOB. { A = createDataType(TSDB_DATA_TYPE_MEDIUMBLOB); }
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type_name(A) ::= BLOB. { A = createDataType(TSDB_DATA_TYPE_BLOB); }
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type_name(A) ::= VARBINARY NK_LP NK_INTEGER(B) NK_RP. { A = createVarLenDataType(TSDB_DATA_TYPE_VARBINARY, &B); }
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type_name(A) ::= DECIMAL. { A = createDataType(TSDB_DATA_TYPE_DECIMAL); }
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type_name(A) ::= DECIMAL NK_LP NK_INTEGER NK_RP. { A = createDataType(TSDB_DATA_TYPE_DECIMAL); }
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type_name(A) ::= DECIMAL NK_LP NK_INTEGER NK_COMMA NK_INTEGER NK_RP. { A = createDataType(TSDB_DATA_TYPE_DECIMAL); }
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%type table_options { SDatabaseOptions* }
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%destructor table_options { tfree($$); }
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table_options(A) ::= . { A = createDefaultTableOptions(pCxt);}
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table_options(A) ::= table_options(B) COMMENT NK_INTEGER(C). { A = setTableOption(pCxt, B, TABLE_OPTION_COMMENT, &C); }
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table_options(A) ::= table_options(B) KEEP NK_INTEGER(C). { A = setTableOption(pCxt, B, TABLE_OPTION_KEEP, &C); }
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table_options(A) ::= table_options(B) TTL NK_INTEGER(C). { A = setTableOption(pCxt, B, TABLE_OPTION_TTL, &C); }
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//cmd ::= SHOW DATABASES. { PARSER_TRACE; createShowStmt(pCxt, SHOW_TYPE_DATABASE); }
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/************************************************ select *************************************************************/
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cmd ::= query_expression(A). { PARSER_TRACE; pCxt->pRootNode = A; }
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/************************************************ literal *************************************************************/
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literal(A) ::= NK_INTEGER(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BIGINT, &B)); }
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literal(A) ::= NK_FLOAT(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_DOUBLE, &B)); }
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literal(A) ::= NK_STRING(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BINARY, &B)); }
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literal(A) ::= NK_BOOL(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BOOL, &B)); }
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literal(A) ::= TIMESTAMP(B) NK_STRING(C). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &C, createValueNode(pCxt, TSDB_DATA_TYPE_TIMESTAMP, &C)); }
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literal(A) ::= duration_literal(B). { PARSER_TRACE; A = B; }
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duration_literal(A) ::= NK_VARIABLE(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createDurationValueNode(pCxt, &B)); }
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%type literal_list { SNodeList* }
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%destructor literal_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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literal_list(A) ::= literal(B). { PARSER_TRACE; A = createNodeList(pCxt, releaseRawExprNode(pCxt, B)); }
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literal_list(A) ::= literal_list(B) NK_COMMA literal(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, releaseRawExprNode(pCxt, C)); }
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/************************************************ names and identifiers ***********************************************/
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%type db_name { SToken }
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%destructor db_name { PARSER_DESTRUCTOR_TRACE; }
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db_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
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%type table_name { SToken }
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%destructor table_name { PARSER_DESTRUCTOR_TRACE; }
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table_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
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%type column_name { SToken }
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%destructor column_name { PARSER_DESTRUCTOR_TRACE; }
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column_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
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%type function_name { SToken }
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%destructor function_name { PARSER_DESTRUCTOR_TRACE; }
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function_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
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%type table_alias { SToken }
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%destructor table_alias { PARSER_DESTRUCTOR_TRACE; }
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table_alias(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
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%type column_alias { SToken }
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%destructor column_alias { PARSER_DESTRUCTOR_TRACE; }
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column_alias(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
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/************************************************ expression **********************************************************/
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expression(A) ::= literal(B). { PARSER_TRACE; A = B; }
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//expression(A) ::= NK_QUESTION(B). { PARSER_TRACE; A = B; }
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//expression(A) ::= pseudo_column(B). { PARSER_TRACE; A = B; }
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expression(A) ::= column_reference(B). { PARSER_TRACE; A = B; }
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expression(A) ::= function_name(B) NK_LP expression_list(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, createFunctionNode(pCxt, &B, C)); }
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expression(A) ::= function_name(B) NK_LP NK_STAR(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, createFunctionNode(pCxt, &B, createNodeList(pCxt, createColumnNode(pCxt, NULL, &C)))); }
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//expression(A) ::= cast_expression(B). { PARSER_TRACE; A = B; }
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//expression(A) ::= case_expression(B). { PARSER_TRACE; A = B; }
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expression(A) ::= subquery(B). { PARSER_TRACE; A = B; }
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expression(A) ::= NK_LP(B) expression(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, releaseRawExprNode(pCxt, C)); }
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expression(A) ::= NK_PLUS(B) expression(C). {
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PARSER_TRACE;
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SToken t = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &B, &t, releaseRawExprNode(pCxt, C));
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}
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expression(A) ::= NK_MINUS(B) expression(C). {
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PARSER_TRACE;
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SToken t = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &B, &t, createOperatorNode(pCxt, OP_TYPE_SUB, releaseRawExprNode(pCxt, C), NULL));
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}
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expression(A) ::= expression(B) NK_PLUS expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_ADD, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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expression(A) ::= expression(B) NK_MINUS expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_SUB, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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expression(A) ::= expression(B) NK_STAR expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_MULTI, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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expression(A) ::= expression(B) NK_SLASH expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_DIV, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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expression(A) ::= expression(B) NK_REM expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_MOD, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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%type expression_list { SNodeList* }
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%destructor expression_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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expression_list(A) ::= expression(B). { PARSER_TRACE; A = createNodeList(pCxt, releaseRawExprNode(pCxt, B)); }
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expression_list(A) ::= expression_list(B) NK_COMMA expression(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, releaseRawExprNode(pCxt, C)); }
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column_reference(A) ::= column_name(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createColumnNode(pCxt, NULL, &B)); }
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column_reference(A) ::= table_name(B) NK_DOT column_name(C). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &C, createColumnNode(pCxt, &B, &C)); }
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//pseudo_column(A) ::= NK_NOW. { PARSER_TRACE; A = createFunctionNode(pCxt, NULL, NULL); }
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/************************************************ predicate ***********************************************************/
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predicate(A) ::= expression(B) compare_op(C) expression(D). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, D);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, C, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, D)));
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}
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//predicate(A) ::= expression(B) compare_op sub_type expression(B).
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predicate(A) ::= expression(B) BETWEEN expression(C) AND expression(D). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, D);
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A = createRawExprNodeExt(pCxt, &s, &e, createBetweenAnd(pCxt, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C), releaseRawExprNode(pCxt, D)));
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}
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predicate(A) ::= expression(B) NOT BETWEEN expression(C) AND expression(D). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, D);
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A = createRawExprNodeExt(pCxt, &s, &e, createNotBetweenAnd(pCxt, releaseRawExprNode(pCxt, C), releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, D)));
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}
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predicate(A) ::= expression(B) IS NULL(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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A = createRawExprNodeExt(pCxt, &s, &C, createOperatorNode(pCxt, OP_TYPE_IS_NULL, releaseRawExprNode(pCxt, B), NULL));
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}
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predicate(A) ::= expression(B) IS NOT NULL(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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A = createRawExprNodeExt(pCxt, &s, &C, createOperatorNode(pCxt, OP_TYPE_IS_NOT_NULL, releaseRawExprNode(pCxt, B), NULL));
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}
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predicate(A) ::= expression(B) in_op(C) in_predicate_value(D). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, D);
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A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, C, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, D)));
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}
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%type compare_op { EOperatorType }
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%destructor compare_op { PARSER_DESTRUCTOR_TRACE; }
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compare_op(A) ::= NK_LT. { PARSER_TRACE; A = OP_TYPE_LOWER_THAN; }
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compare_op(A) ::= NK_GT. { PARSER_TRACE; A = OP_TYPE_GREATER_THAN; }
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compare_op(A) ::= NK_LE. { PARSER_TRACE; A = OP_TYPE_LOWER_EQUAL; }
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compare_op(A) ::= NK_GE. { PARSER_TRACE; A = OP_TYPE_GREATER_EQUAL; }
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compare_op(A) ::= NK_NE. { PARSER_TRACE; A = OP_TYPE_NOT_EQUAL; }
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compare_op(A) ::= NK_EQ. { PARSER_TRACE; A = OP_TYPE_EQUAL; }
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compare_op(A) ::= LIKE. { PARSER_TRACE; A = OP_TYPE_LIKE; }
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compare_op(A) ::= NOT LIKE. { PARSER_TRACE; A = OP_TYPE_NOT_LIKE; }
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compare_op(A) ::= MATCH. { PARSER_TRACE; A = OP_TYPE_MATCH; }
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compare_op(A) ::= NMATCH. { PARSER_TRACE; A = OP_TYPE_NMATCH; }
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%type in_op { EOperatorType }
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%destructor in_op { PARSER_DESTRUCTOR_TRACE; }
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in_op(A) ::= IN. { PARSER_TRACE; A = OP_TYPE_IN; }
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in_op(A) ::= NOT IN. { PARSER_TRACE; A = OP_TYPE_NOT_IN; }
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in_predicate_value(A) ::= NK_LP(C) expression_list(B) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &C, &D, createNodeListNode(pCxt, B)); }
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/************************************************ boolean_value_expression ********************************************/
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boolean_value_expression(A) ::= boolean_primary(B). { PARSER_TRACE; A = B; }
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boolean_value_expression(A) ::= NOT(C) boolean_primary(B). {
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PARSER_TRACE;
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SToken e = getTokenFromRawExprNode(pCxt, B);
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A = createRawExprNodeExt(pCxt, &C, &e, createLogicConditionNode(pCxt, LOGIC_COND_TYPE_NOT, releaseRawExprNode(pCxt, B), NULL));
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}
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boolean_value_expression(A) ::=
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boolean_value_expression(B) OR boolean_value_expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createLogicConditionNode(pCxt, LOGIC_COND_TYPE_OR, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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boolean_value_expression(A) ::=
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boolean_value_expression(B) AND boolean_value_expression(C). {
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PARSER_TRACE;
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SToken s = getTokenFromRawExprNode(pCxt, B);
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SToken e = getTokenFromRawExprNode(pCxt, C);
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A = createRawExprNodeExt(pCxt, &s, &e, createLogicConditionNode(pCxt, LOGIC_COND_TYPE_AND, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
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}
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boolean_primary(A) ::= predicate(B). { PARSER_TRACE; A = B; }
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boolean_primary(A) ::= NK_LP(C) boolean_value_expression(B) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &C, &D, releaseRawExprNode(pCxt, B)); }
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/************************************************ common_expression ********************************************/
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common_expression(A) ::= expression(B). { A = B; }
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common_expression(A) ::= boolean_value_expression(B). { A = B; }
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/************************************************ from_clause *********************************************************/
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from_clause(A) ::= FROM table_reference_list(B). { PARSER_TRACE; A = B; }
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table_reference_list(A) ::= table_reference(B). { PARSER_TRACE; A = B; }
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table_reference_list(A) ::= table_reference_list(B) NK_COMMA table_reference(C). { PARSER_TRACE; A = createJoinTableNode(pCxt, JOIN_TYPE_INNER, B, C, NULL); }
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/************************************************ table_reference *****************************************************/
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table_reference(A) ::= table_primary(B). { PARSER_TRACE; A = B; }
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table_reference(A) ::= joined_table(B). { PARSER_TRACE; A = B; }
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table_primary(A) ::= table_name(B) alias_opt(C). { PARSER_TRACE; A = createRealTableNode(pCxt, NULL, &B, &C); }
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table_primary(A) ::= db_name(B) NK_DOT table_name(C) alias_opt(D). { PARSER_TRACE; A = createRealTableNode(pCxt, &B, &C, &D); }
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table_primary(A) ::= subquery(B) alias_opt(C). { PARSER_TRACE; A = createTempTableNode(pCxt, releaseRawExprNode(pCxt, B), &C); }
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table_primary(A) ::= parenthesized_joined_table(B). { PARSER_TRACE; A = B; }
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%type alias_opt { SToken }
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%destructor alias_opt { PARSER_DESTRUCTOR_TRACE; }
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alias_opt(A) ::= . { PARSER_TRACE; A = nil_token; }
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alias_opt(A) ::= table_alias(B). { PARSER_TRACE; A = B; }
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alias_opt(A) ::= AS table_alias(B). { PARSER_TRACE; A = B; }
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parenthesized_joined_table(A) ::= NK_LP joined_table(B) NK_RP. { PARSER_TRACE; A = B; }
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parenthesized_joined_table(A) ::= NK_LP parenthesized_joined_table(B) NK_RP. { PARSER_TRACE; A = B; }
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/************************************************ joined_table ********************************************************/
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joined_table(A) ::=
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table_reference(B) join_type(C) JOIN table_reference(D) ON search_condition(E). { PARSER_TRACE; A = createJoinTableNode(pCxt, C, B, D, E); }
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%type join_type { EJoinType }
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%destructor join_type { PARSER_DESTRUCTOR_TRACE; }
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join_type(A) ::= . { PARSER_TRACE; A = JOIN_TYPE_INNER; }
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join_type(A) ::= INNER. { PARSER_TRACE; A = JOIN_TYPE_INNER; }
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/************************************************ query_specification *************************************************/
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query_specification(A) ::=
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SELECT set_quantifier_opt(B) select_list(C) from_clause(D) where_clause_opt(E)
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partition_by_clause_opt(F) twindow_clause_opt(G)
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group_by_clause_opt(H) having_clause_opt(I). {
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PARSER_TRACE;
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A = createSelectStmt(pCxt, B, C, D);
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A = addWhereClause(pCxt, A, E);
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A = addPartitionByClause(pCxt, A, F);
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A = addWindowClauseClause(pCxt, A, G);
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A = addGroupByClause(pCxt, A, H);
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A = addHavingClause(pCxt, A, I);
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}
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%type set_quantifier_opt { bool }
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%destructor set_quantifier_opt { PARSER_DESTRUCTOR_TRACE; }
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set_quantifier_opt(A) ::= . { PARSER_TRACE; A = false; }
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set_quantifier_opt(A) ::= DISTINCT. { PARSER_TRACE; A = true; }
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set_quantifier_opt(A) ::= ALL. { PARSER_TRACE; A = false; }
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%type select_list { SNodeList* }
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%destructor select_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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select_list(A) ::= NK_STAR. { PARSER_TRACE; A = NULL; }
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select_list(A) ::= select_sublist(B). { PARSER_TRACE; A = B; }
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%type select_sublist { SNodeList* }
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%destructor select_sublist { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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select_sublist(A) ::= select_item(B). { PARSER_TRACE; A = createNodeList(pCxt, B); }
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select_sublist(A) ::= select_sublist(B) NK_COMMA select_item(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, C); }
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select_item(A) ::= common_expression(B). {
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PARSER_TRACE;
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SToken t = getTokenFromRawExprNode(pCxt, B);
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A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &t);
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}
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select_item(A) ::= common_expression(B) column_alias(C). { PARSER_TRACE; A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &C); }
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select_item(A) ::= common_expression(B) AS column_alias(C). { PARSER_TRACE; A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &C); }
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select_item(A) ::= table_name(B) NK_DOT NK_STAR(C). { PARSER_TRACE; A = createColumnNode(pCxt, &B, &C); }
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where_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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where_clause_opt(A) ::= WHERE search_condition(B). { PARSER_TRACE; A = B; }
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%type partition_by_clause_opt { SNodeList* }
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%destructor partition_by_clause_opt { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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partition_by_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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partition_by_clause_opt(A) ::= PARTITION BY expression_list(B). { PARSER_TRACE; A = B; }
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twindow_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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twindow_clause_opt(A) ::=
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SESSION NK_LP column_reference(B) NK_COMMA NK_INTEGER(C) NK_RP. { PARSER_TRACE; A = createSessionWindowNode(pCxt, releaseRawExprNode(pCxt, B), &C); }
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twindow_clause_opt(A) ::= STATE_WINDOW NK_LP column_reference(B) NK_RP. { PARSER_TRACE; A = createStateWindowNode(pCxt, releaseRawExprNode(pCxt, B)); }
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twindow_clause_opt(A) ::=
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INTERVAL NK_LP duration_literal(B) NK_RP sliding_opt(C) fill_opt(D). { PARSER_TRACE; A = createIntervalWindowNode(pCxt, B, NULL, C, D); }
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twindow_clause_opt(A) ::=
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INTERVAL NK_LP duration_literal(B) NK_COMMA duration_literal(C) NK_RP
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sliding_opt(D) fill_opt(E). { PARSER_TRACE; A = createIntervalWindowNode(pCxt, B, C, D, E); }
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sliding_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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sliding_opt(A) ::= SLIDING NK_LP duration_literal(B) NK_RP. { PARSER_TRACE; A = B; }
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fill_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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fill_opt(A) ::= FILL NK_LP fill_mode(B) NK_RP. { PARSER_TRACE; A = createFillNode(pCxt, B, NULL); }
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fill_opt(A) ::= FILL NK_LP VALUE NK_COMMA literal_list(B) NK_RP. { PARSER_TRACE; A = createFillNode(pCxt, FILL_MODE_VALUE, createNodeListNode(pCxt, B)); }
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%type fill_mode { EFillMode }
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%destructor fill_mode { PARSER_DESTRUCTOR_TRACE; }
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fill_mode(A) ::= NONE. { PARSER_TRACE; A = FILL_MODE_NONE; }
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fill_mode(A) ::= PREV. { PARSER_TRACE; A = FILL_MODE_PREV; }
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fill_mode(A) ::= NULL. { PARSER_TRACE; A = FILL_MODE_NULL; }
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fill_mode(A) ::= LINEAR. { PARSER_TRACE; A = FILL_MODE_LINEAR; }
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fill_mode(A) ::= NEXT. { PARSER_TRACE; A = FILL_MODE_NEXT; }
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%type group_by_clause_opt { SNodeList* }
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%destructor group_by_clause_opt { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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group_by_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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group_by_clause_opt(A) ::= GROUP BY group_by_list(B). { PARSER_TRACE; A = B; }
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%type group_by_list { SNodeList* }
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%destructor group_by_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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group_by_list(A) ::= expression(B). { PARSER_TRACE; A = createNodeList(pCxt, createGroupingSetNode(pCxt, releaseRawExprNode(pCxt, B))); }
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group_by_list(A) ::= group_by_list(B) NK_COMMA expression(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, createGroupingSetNode(pCxt, releaseRawExprNode(pCxt, C))); }
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having_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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having_clause_opt(A) ::= HAVING search_condition(B). { PARSER_TRACE; A = B; }
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/************************************************ query_expression ****************************************************/
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query_expression(A) ::=
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query_expression_body(B)
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order_by_clause_opt(C) slimit_clause_opt(D) limit_clause_opt(E). {
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PARSER_TRACE;
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A = addOrderByClause(pCxt, B, C);
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A = addSlimitClause(pCxt, A, D);
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A = addLimitClause(pCxt, A, E);
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}
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query_expression_body(A) ::= query_primary(B). { PARSER_TRACE; A = B; }
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query_expression_body(A) ::=
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query_expression_body(B) UNION ALL query_expression_body(D). { PARSER_TRACE; A = createSetOperator(pCxt, SET_OP_TYPE_UNION_ALL, B, D); }
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query_primary(A) ::= query_specification(B). { PARSER_TRACE; A = B; }
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//query_primary(A) ::=
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// NK_LP query_expression_body(B)
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// order_by_clause_opt slimit_clause_opt limit_clause_opt NK_RP. { PARSER_TRACE; A = B;}
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%type order_by_clause_opt { SNodeList* }
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%destructor order_by_clause_opt { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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order_by_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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order_by_clause_opt(A) ::= ORDER BY sort_specification_list(B). { PARSER_TRACE; A = B; }
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slimit_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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slimit_clause_opt(A) ::= SLIMIT NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, NULL); }
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slimit_clause_opt(A) ::= SLIMIT NK_INTEGER(B) SOFFSET NK_INTEGER(C). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
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slimit_clause_opt(A) ::= SLIMIT NK_INTEGER(C) NK_COMMA NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
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limit_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
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limit_clause_opt(A) ::= LIMIT NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, NULL); }
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limit_clause_opt(A) ::= LIMIT NK_INTEGER(B) OFFSET NK_INTEGER(C). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
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limit_clause_opt(A) ::= LIMIT NK_INTEGER(C) NK_COMMA NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
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/************************************************ subquery ************************************************************/
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subquery(A) ::= NK_LP(B) query_expression(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, C); }
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/************************************************ search_condition ****************************************************/
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search_condition(A) ::= common_expression(B). { PARSER_TRACE; A = releaseRawExprNode(pCxt, B); }
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/************************************************ sort_specification_list *********************************************/
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%type sort_specification_list { SNodeList* }
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%destructor sort_specification_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
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sort_specification_list(A) ::= sort_specification(B). { PARSER_TRACE; A = createNodeList(pCxt, B); }
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sort_specification_list(A) ::=
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sort_specification_list(B) NK_COMMA sort_specification(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, C); }
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sort_specification(A) ::=
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expression(B) ordering_specification_opt(C) null_ordering_opt(D). { PARSER_TRACE; A = createOrderByExprNode(pCxt, releaseRawExprNode(pCxt, B), C, D); }
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%type ordering_specification_opt EOrder
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%destructor ordering_specification_opt { PARSER_DESTRUCTOR_TRACE; }
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ordering_specification_opt(A) ::= . { PARSER_TRACE; A = ORDER_ASC; }
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ordering_specification_opt(A) ::= ASC. { PARSER_TRACE; A = ORDER_ASC; }
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ordering_specification_opt(A) ::= DESC. { PARSER_TRACE; A = ORDER_DESC; }
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%type null_ordering_opt ENullOrder
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%destructor null_ordering_opt { PARSER_DESTRUCTOR_TRACE; }
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null_ordering_opt(A) ::= . { PARSER_TRACE; A = NULL_ORDER_DEFAULT; }
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null_ordering_opt(A) ::= NULLS FIRST. { PARSER_TRACE; A = NULL_ORDER_FIRST; }
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null_ordering_opt(A) ::= NULLS LAST. { PARSER_TRACE; A = NULL_ORDER_LAST; }
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