homework-jianmu/source/libs/parser/inc/new_sql.y

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//lemon parser file to generate sql parse by using finite-state-machine code used to parse sql
//usage: lemon sql.y
%name NewParse
%token_prefix NEW_TK_
%token_type { SToken }
%default_type { SNode* }
%default_destructor { PARSER_DESTRUCTOR_TRACE; nodesDestroyNode($$); }
%extra_argument { SAstCreateContext* pCxt }
%include {
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <stdbool.h>
#include "nodes.h"
#include "ttoken.h"
#include "ttokendef.h"
#include "astCreateFuncs.h"
#if 0
#define PARSER_TRACE printf("lemon rule = %s\n", yyRuleName[yyruleno])
#define PARSER_DESTRUCTOR_TRACE printf("lemon destroy token = %s\n", yyTokenName[yymajor])
#define PARSER_COMPLETE printf("parsing complete!\n" )
#else
#define PARSER_TRACE
#define PARSER_DESTRUCTOR_TRACE
#define PARSER_COMPLETE
#endif
}
%syntax_error {
if(TOKEN.z) {
char msg[] = "syntax error near \"%s\"";
int32_t sqlLen = strlen(&TOKEN.z[0]);
if (sqlLen + sizeof(msg)/sizeof(msg[0]) + 1 > pCxt->pQueryCxt->msgLen) {
char tmpstr[128] = {0};
memcpy(tmpstr, &TOKEN.z[0], sizeof(tmpstr)/sizeof(tmpstr[0]) - 1);
sprintf(pCxt->pQueryCxt->pMsg, msg, tmpstr);
} else {
sprintf(pCxt->pQueryCxt->pMsg, msg, &TOKEN.z[0]);
}
} else {
sprintf(pCxt->pQueryCxt->pMsg, "Incomplete SQL statement");
}
pCxt->valid = false;
}
%parse_accept { PARSER_COMPLETE; }
%left OR.
%left AND.
//%right NOT.
%left UNION ALL MINUS EXCEPT INTERSECT.
//%left BITAND BITOR LSHIFT RSHIFT.
%left NK_PLUS NK_MINUS.
//%left DIVIDE TIMES.
%left NK_STAR NK_SLASH NK_REM.
//%left CONCAT.
//%right UMINUS UPLUS BITNOT.
cmd ::= SHOW DATABASES. { PARSER_TRACE; createShowStmt(pCxt, SHOW_TYPE_DATABASE); }
cmd ::= query_expression(A). { PARSER_TRACE; pCxt->pRootNode = A; }
/************************************************ literal *************************************************************/
literal(A) ::= NK_INTEGER(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BIGINT, &B)); }
literal(A) ::= NK_FLOAT(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_DOUBLE, &B)); }
literal(A) ::= NK_STRING(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BINARY, &B)); }
literal(A) ::= NK_BOOL(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createValueNode(pCxt, TSDB_DATA_TYPE_BOOL, &B)); }
literal(A) ::= TIMESTAMP(B) NK_STRING(C). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &C, createValueNode(pCxt, TSDB_DATA_TYPE_TIMESTAMP, &C)); }
literal(A) ::= duration_literal(B). { PARSER_TRACE; A = B; }
duration_literal(A) ::= NK_VARIABLE(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createDurationValueNode(pCxt, &B)); }
%type literal_list { SNodeList* }
%destructor literal_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
literal_list(A) ::= literal(B). { PARSER_TRACE; A = createNodeList(pCxt, releaseRawExprNode(pCxt, B)); }
literal_list(A) ::= literal_list(B) NK_COMMA literal(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, releaseRawExprNode(pCxt, C)); }
/************************************************ names and identifiers ***********************************************/
%type db_name { SToken }
%destructor db_name { PARSER_DESTRUCTOR_TRACE; }
db_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
%type table_name { SToken }
%destructor table_name { PARSER_DESTRUCTOR_TRACE; }
table_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
%type column_name { SToken }
%destructor column_name { PARSER_DESTRUCTOR_TRACE; }
column_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
%type function_name { SToken }
%destructor function_name { PARSER_DESTRUCTOR_TRACE; }
function_name(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
%type table_alias { SToken }
%destructor table_alias { PARSER_DESTRUCTOR_TRACE; }
table_alias(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
%type column_alias { SToken }
%destructor column_alias { PARSER_DESTRUCTOR_TRACE; }
column_alias(A) ::= NK_ID(B). { PARSER_TRACE; A = B; }
/************************************************ expression **********************************************************/
expression(A) ::= literal(B). { PARSER_TRACE; A = B; }
//expression(A) ::= NK_QUESTION(B). { PARSER_TRACE; A = B; }
//expression(A) ::= pseudo_column(B). { PARSER_TRACE; A = B; }
expression(A) ::= column_reference(B). { PARSER_TRACE; A = B; }
expression(A) ::= function_name(B) NK_LP expression_list(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, createFunctionNode(pCxt, &B, C)); }
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)))); }
//expression(A) ::= cast_expression(B). { PARSER_TRACE; A = B; }
//expression(A) ::= case_expression(B). { PARSER_TRACE; A = B; }
expression(A) ::= subquery(B). { PARSER_TRACE; A = B; }
expression(A) ::= NK_LP(B) expression(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, releaseRawExprNode(pCxt, C)); }
expression(A) ::= NK_PLUS(B) expression(C). {
PARSER_TRACE;
SToken t = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &B, &t, releaseRawExprNode(pCxt, C));
}
expression(A) ::= NK_MINUS(B) expression(C). {
PARSER_TRACE;
SToken t = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &B, &t, createOperatorNode(pCxt, OP_TYPE_SUB, releaseRawExprNode(pCxt, C), NULL));
}
expression(A) ::= expression(B) NK_PLUS expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_ADD, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
expression(A) ::= expression(B) NK_MINUS expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_SUB, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
expression(A) ::= expression(B) NK_STAR expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_MULTI, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
expression(A) ::= expression(B) NK_SLASH expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_DIV, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
expression(A) ::= expression(B) NK_REM expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, OP_TYPE_MOD, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
%type expression_list { SNodeList* }
%destructor expression_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
expression_list(A) ::= expression(B). { PARSER_TRACE; A = createNodeList(pCxt, releaseRawExprNode(pCxt, B)); }
expression_list(A) ::= expression_list(B) NK_COMMA expression(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, releaseRawExprNode(pCxt, C)); }
column_reference(A) ::= column_name(B). { PARSER_TRACE; A = createRawExprNode(pCxt, &B, createColumnNode(pCxt, NULL, &B)); }
column_reference(A) ::= table_name(B) NK_DOT column_name(C). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &C, createColumnNode(pCxt, &B, &C)); }
//pseudo_column(A) ::= NK_NOW. { PARSER_TRACE; A = createFunctionNode(pCxt, NULL, NULL); }
/************************************************ predicate ***********************************************************/
predicate(A) ::= expression(B) compare_op(C) expression(D). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, D);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, C, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, D)));
}
//predicate(A) ::= expression(B) compare_op sub_type expression(B).
predicate(A) ::= expression(B) BETWEEN expression(C) AND expression(D). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, D);
A = createRawExprNodeExt(pCxt, &s, &e, createBetweenAnd(pCxt, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C), releaseRawExprNode(pCxt, D)));
}
predicate(A) ::= expression(B) NOT BETWEEN expression(C) AND expression(D). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, D);
A = createRawExprNodeExt(pCxt, &s, &e, createNotBetweenAnd(pCxt, releaseRawExprNode(pCxt, C), releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, D)));
}
predicate(A) ::= expression(B) IS NULL(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
A = createRawExprNodeExt(pCxt, &s, &C, createOperatorNode(pCxt, OP_TYPE_IS_NULL, releaseRawExprNode(pCxt, B), NULL));
}
predicate(A) ::= expression(B) IS NOT NULL(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
A = createRawExprNodeExt(pCxt, &s, &C, createOperatorNode(pCxt, OP_TYPE_IS_NOT_NULL, releaseRawExprNode(pCxt, B), NULL));
}
predicate(A) ::= expression(B) in_op(C) in_predicate_value(D). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, D);
A = createRawExprNodeExt(pCxt, &s, &e, createOperatorNode(pCxt, C, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, D)));
}
%type compare_op { EOperatorType }
%destructor compare_op { PARSER_DESTRUCTOR_TRACE; }
compare_op(A) ::= NK_LT. { PARSER_TRACE; A = OP_TYPE_LOWER_THAN; }
compare_op(A) ::= NK_GT. { PARSER_TRACE; A = OP_TYPE_GREATER_THAN; }
compare_op(A) ::= NK_LE. { PARSER_TRACE; A = OP_TYPE_LOWER_EQUAL; }
compare_op(A) ::= NK_GE. { PARSER_TRACE; A = OP_TYPE_GREATER_EQUAL; }
compare_op(A) ::= NK_NE. { PARSER_TRACE; A = OP_TYPE_NOT_EQUAL; }
compare_op(A) ::= NK_EQ. { PARSER_TRACE; A = OP_TYPE_EQUAL; }
compare_op(A) ::= LIKE. { PARSER_TRACE; A = OP_TYPE_LIKE; }
compare_op(A) ::= NOT LIKE. { PARSER_TRACE; A = OP_TYPE_NOT_LIKE; }
compare_op(A) ::= MATCH. { PARSER_TRACE; A = OP_TYPE_MATCH; }
compare_op(A) ::= NMATCH. { PARSER_TRACE; A = OP_TYPE_NMATCH; }
%type in_op { EOperatorType }
%destructor in_op { PARSER_DESTRUCTOR_TRACE; }
in_op(A) ::= IN. { PARSER_TRACE; A = OP_TYPE_IN; }
in_op(A) ::= NOT IN. { PARSER_TRACE; A = OP_TYPE_NOT_IN; }
in_predicate_value(A) ::= NK_LP(C) expression_list(B) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &C, &D, createNodeListNode(pCxt, B)); }
/************************************************ boolean_value_expression ********************************************/
boolean_value_expression(A) ::= boolean_primary(B). { PARSER_TRACE; A = B; }
boolean_value_expression(A) ::= NOT(C) boolean_primary(B). {
PARSER_TRACE;
SToken e = getTokenFromRawExprNode(pCxt, B);
A = createRawExprNodeExt(pCxt, &C, &e, createLogicConditionNode(pCxt, LOGIC_COND_TYPE_NOT, releaseRawExprNode(pCxt, B), NULL));
}
boolean_value_expression(A) ::=
boolean_value_expression(B) OR boolean_value_expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createLogicConditionNode(pCxt, LOGIC_COND_TYPE_OR, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
boolean_value_expression(A) ::=
boolean_value_expression(B) AND boolean_value_expression(C). {
PARSER_TRACE;
SToken s = getTokenFromRawExprNode(pCxt, B);
SToken e = getTokenFromRawExprNode(pCxt, C);
A = createRawExprNodeExt(pCxt, &s, &e, createLogicConditionNode(pCxt, LOGIC_COND_TYPE_AND, releaseRawExprNode(pCxt, B), releaseRawExprNode(pCxt, C)));
}
boolean_primary(A) ::= predicate(B). { PARSER_TRACE; A = B; }
boolean_primary(A) ::= NK_LP(C) boolean_value_expression(B) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &C, &D, releaseRawExprNode(pCxt, B)); }
/************************************************ common_expression ********************************************/
common_expression(A) ::= expression(B). { A = B; }
common_expression(A) ::= boolean_value_expression(B). { A = B; }
/************************************************ from_clause *********************************************************/
from_clause(A) ::= FROM table_reference_list(B). { PARSER_TRACE; A = B; }
table_reference_list(A) ::= table_reference(B). { PARSER_TRACE; A = B; }
table_reference_list(A) ::= table_reference_list(B) NK_COMMA table_reference(C). { PARSER_TRACE; A = createJoinTableNode(pCxt, JOIN_TYPE_INNER, B, C, NULL); }
/************************************************ table_reference *****************************************************/
table_reference(A) ::= table_primary(B). { PARSER_TRACE; A = B; }
table_reference(A) ::= joined_table(B). { PARSER_TRACE; A = B; }
table_primary(A) ::= table_name(B) alias_opt(C). { PARSER_TRACE; A = createRealTableNode(pCxt, NULL, &B, &C); }
table_primary(A) ::= db_name(B) NK_DOT table_name(C) alias_opt(D). { PARSER_TRACE; A = createRealTableNode(pCxt, &B, &C, &D); }
table_primary(A) ::= subquery(B) alias_opt(C). { PARSER_TRACE; A = createTempTableNode(pCxt, releaseRawExprNode(pCxt, B), &C); }
table_primary(A) ::= parenthesized_joined_table(B). { PARSER_TRACE; A = B; }
%type alias_opt { SToken }
%destructor alias_opt { PARSER_DESTRUCTOR_TRACE; }
alias_opt(A) ::= . { PARSER_TRACE; A = nil_token; }
alias_opt(A) ::= table_alias(B). { PARSER_TRACE; A = B; }
alias_opt(A) ::= AS table_alias(B). { PARSER_TRACE; A = B; }
parenthesized_joined_table(A) ::= NK_LP joined_table(B) NK_RP. { PARSER_TRACE; A = B; }
parenthesized_joined_table(A) ::= NK_LP parenthesized_joined_table(B) NK_RP. { PARSER_TRACE; A = B; }
/************************************************ joined_table ********************************************************/
joined_table(A) ::=
table_reference(B) join_type(C) JOIN table_reference(D) ON search_condition(E). { PARSER_TRACE; A = createJoinTableNode(pCxt, C, B, D, E); }
%type join_type { EJoinType }
%destructor join_type { PARSER_DESTRUCTOR_TRACE; }
join_type(A) ::= . { PARSER_TRACE; A = JOIN_TYPE_INNER; }
join_type(A) ::= INNER. { PARSER_TRACE; A = JOIN_TYPE_INNER; }
/************************************************ query_specification *************************************************/
query_specification(A) ::=
SELECT set_quantifier_opt(B) select_list(C) from_clause(D) where_clause_opt(E)
partition_by_clause_opt(F) twindow_clause_opt(G)
group_by_clause_opt(H) having_clause_opt(I). {
PARSER_TRACE;
A = createSelectStmt(pCxt, B, C, D);
A = addWhereClause(pCxt, A, E);
A = addPartitionByClause(pCxt, A, F);
A = addWindowClauseClause(pCxt, A, G);
A = addGroupByClause(pCxt, A, H);
A = addHavingClause(pCxt, A, I);
}
%type set_quantifier_opt { bool }
%destructor set_quantifier_opt { PARSER_DESTRUCTOR_TRACE; }
set_quantifier_opt(A) ::= . { PARSER_TRACE; A = false; }
set_quantifier_opt(A) ::= DISTINCT. { PARSER_TRACE; A = true; }
set_quantifier_opt(A) ::= ALL. { PARSER_TRACE; A = false; }
%type select_list { SNodeList* }
%destructor select_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
select_list(A) ::= NK_STAR. { PARSER_TRACE; A = NULL; }
select_list(A) ::= select_sublist(B). { PARSER_TRACE; A = B; }
%type select_sublist { SNodeList* }
%destructor select_sublist { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
select_sublist(A) ::= select_item(B). { PARSER_TRACE; A = createNodeList(pCxt, B); }
select_sublist(A) ::= select_sublist(B) NK_COMMA select_item(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, C); }
select_item(A) ::= common_expression(B). {
PARSER_TRACE;
SToken t = getTokenFromRawExprNode(pCxt, B);
A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &t);
}
select_item(A) ::= common_expression(B) column_alias(C). { PARSER_TRACE; A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &C); }
select_item(A) ::= common_expression(B) AS column_alias(C). { PARSER_TRACE; A = setProjectionAlias(pCxt, releaseRawExprNode(pCxt, B), &C); }
select_item(A) ::= table_name(B) NK_DOT NK_STAR(C). { PARSER_TRACE; A = createColumnNode(pCxt, &B, &C); }
where_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
where_clause_opt(A) ::= WHERE search_condition(B). { PARSER_TRACE; A = B; }
%type partition_by_clause_opt { SNodeList* }
%destructor partition_by_clause_opt { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
partition_by_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
partition_by_clause_opt(A) ::= PARTITION BY expression_list(B). { PARSER_TRACE; A = B; }
twindow_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
twindow_clause_opt(A) ::=
SESSION NK_LP column_reference(B) NK_COMMA NK_INTEGER(C) NK_RP. { PARSER_TRACE; A = createSessionWindowNode(pCxt, releaseRawExprNode(pCxt, B), &C); }
twindow_clause_opt(A) ::= STATE_WINDOW NK_LP column_reference(B) NK_RP. { PARSER_TRACE; A = createStateWindowNode(pCxt, releaseRawExprNode(pCxt, B)); }
twindow_clause_opt(A) ::=
INTERVAL NK_LP duration_literal(B) NK_RP sliding_opt(C) fill_opt(D). { PARSER_TRACE; A = createIntervalWindowNode(pCxt, B, NULL, C, D); }
twindow_clause_opt(A) ::=
INTERVAL NK_LP duration_literal(B) NK_COMMA duration_literal(C) NK_RP
sliding_opt(D) fill_opt(E). { PARSER_TRACE; A = createIntervalWindowNode(pCxt, B, C, D, E); }
sliding_opt(A) ::= . { PARSER_TRACE; A = NULL; }
sliding_opt(A) ::= SLIDING NK_LP duration_literal(B) NK_RP. { PARSER_TRACE; A = B; }
fill_opt(A) ::= . { PARSER_TRACE; A = NULL; }
fill_opt(A) ::= FILL NK_LP fill_mode(B) NK_RP. { PARSER_TRACE; A = createFillNode(pCxt, B, NULL); }
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)); }
%type fill_mode { EFillMode }
%destructor fill_mode { PARSER_DESTRUCTOR_TRACE; }
fill_mode(A) ::= NONE. { PARSER_TRACE; A = FILL_MODE_NONE; }
fill_mode(A) ::= PREV. { PARSER_TRACE; A = FILL_MODE_PREV; }
fill_mode(A) ::= NULL. { PARSER_TRACE; A = FILL_MODE_NULL; }
fill_mode(A) ::= LINEAR. { PARSER_TRACE; A = FILL_MODE_LINEAR; }
fill_mode(A) ::= NEXT. { PARSER_TRACE; A = FILL_MODE_NEXT; }
%type group_by_clause_opt { SNodeList* }
%destructor group_by_clause_opt { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
group_by_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
group_by_clause_opt(A) ::= GROUP BY group_by_list(B). { PARSER_TRACE; A = B; }
%type group_by_list { SNodeList* }
%destructor group_by_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
group_by_list(A) ::= expression(B). { PARSER_TRACE; A = createNodeList(pCxt, createGroupingSetNode(pCxt, releaseRawExprNode(pCxt, B))); }
group_by_list(A) ::= group_by_list(B) NK_COMMA expression(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, createGroupingSetNode(pCxt, releaseRawExprNode(pCxt, C))); }
having_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
having_clause_opt(A) ::= HAVING search_condition(B). { PARSER_TRACE; A = B; }
/************************************************ query_expression ****************************************************/
query_expression(A) ::=
query_expression_body(B)
order_by_clause_opt(C) slimit_clause_opt(D) limit_clause_opt(E). {
PARSER_TRACE;
A = addOrderByClause(pCxt, B, C);
A = addSlimitClause(pCxt, A, D);
A = addLimitClause(pCxt, A, E);
}
query_expression_body(A) ::= query_primary(B). { PARSER_TRACE; A = B; }
query_expression_body(A) ::=
query_expression_body(B) UNION ALL query_expression_body(D). { PARSER_TRACE; A = createSetOperator(pCxt, SET_OP_TYPE_UNION_ALL, B, D); }
query_primary(A) ::= query_specification(B). { PARSER_TRACE; A = B; }
//query_primary(A) ::=
// NK_LP query_expression_body(B)
// order_by_clause_opt slimit_clause_opt limit_clause_opt NK_RP. { PARSER_TRACE; A = B;}
%type order_by_clause_opt { SNodeList* }
%destructor order_by_clause_opt { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
order_by_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
order_by_clause_opt(A) ::= ORDER BY sort_specification_list(B). { PARSER_TRACE; A = B; }
slimit_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
slimit_clause_opt(A) ::= SLIMIT NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, NULL); }
slimit_clause_opt(A) ::= SLIMIT NK_INTEGER(B) SOFFSET NK_INTEGER(C). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
slimit_clause_opt(A) ::= SLIMIT NK_INTEGER(C) NK_COMMA NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
limit_clause_opt(A) ::= . { PARSER_TRACE; A = NULL; }
limit_clause_opt(A) ::= LIMIT NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, NULL); }
limit_clause_opt(A) ::= LIMIT NK_INTEGER(B) OFFSET NK_INTEGER(C). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
limit_clause_opt(A) ::= LIMIT NK_INTEGER(C) NK_COMMA NK_INTEGER(B). { PARSER_TRACE; A = createLimitNode(pCxt, &B, &C); }
/************************************************ subquery ************************************************************/
subquery(A) ::= NK_LP(B) query_expression(C) NK_RP(D). { PARSER_TRACE; A = createRawExprNodeExt(pCxt, &B, &D, C); }
/************************************************ search_condition ****************************************************/
search_condition(A) ::= common_expression(B). { PARSER_TRACE; A = releaseRawExprNode(pCxt, B); }
/************************************************ sort_specification_list *********************************************/
%type sort_specification_list { SNodeList* }
%destructor sort_specification_list { PARSER_DESTRUCTOR_TRACE; nodesDestroyList($$); }
sort_specification_list(A) ::= sort_specification(B). { PARSER_TRACE; A = createNodeList(pCxt, B); }
sort_specification_list(A) ::=
sort_specification_list(B) NK_COMMA sort_specification(C). { PARSER_TRACE; A = addNodeToList(pCxt, B, C); }
sort_specification(A) ::=
expression(B) ordering_specification_opt(C) null_ordering_opt(D). { PARSER_TRACE; A = createOrderByExprNode(pCxt, releaseRawExprNode(pCxt, B), C, D); }
%type ordering_specification_opt EOrder
%destructor ordering_specification_opt { PARSER_DESTRUCTOR_TRACE; }
ordering_specification_opt(A) ::= . { PARSER_TRACE; A = ORDER_ASC; }
ordering_specification_opt(A) ::= ASC. { PARSER_TRACE; A = ORDER_ASC; }
ordering_specification_opt(A) ::= DESC. { PARSER_TRACE; A = ORDER_DESC; }
%type null_ordering_opt ENullOrder
%destructor null_ordering_opt { PARSER_DESTRUCTOR_TRACE; }
null_ordering_opt(A) ::= . { PARSER_TRACE; A = NULL_ORDER_DEFAULT; }
null_ordering_opt(A) ::= NULLS FIRST. { PARSER_TRACE; A = NULL_ORDER_FIRST; }
null_ordering_opt(A) ::= NULLS LAST. { PARSER_TRACE; A = NULL_ORDER_LAST; }