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feat: sql system info function 'database()', 'client_version()', 'server_version()', 'server_status()', 'current_user()' and 'user()'

This commit is contained in:
Xiaoyu Wang 2022-06-29 11:41:32 +08:00
parent ed4b2dec17
commit ae076af4f1
18 changed files with 3120 additions and 2800 deletions
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94
include/common/ttokendef.h
View File

@ -216,51 +216,55 @@
#define TK_NOW 198
#define TK_TODAY 199
#define TK_TIMEZONE 200
#define TK_COUNT 201
#define TK_LAST_ROW 202
#define TK_BETWEEN 203
#define TK_IS 204
#define TK_NK_LT 205
#define TK_NK_GT 206
#define TK_NK_LE 207
#define TK_NK_GE 208
#define TK_NK_NE 209
#define TK_MATCH 210
#define TK_NMATCH 211
#define TK_CONTAINS 212
#define TK_JOIN 213
#define TK_INNER 214
#define TK_SELECT 215
#define TK_DISTINCT 216
#define TK_WHERE 217
#define TK_PARTITION 218
#define TK_BY 219
#define TK_SESSION 220
#define TK_STATE_WINDOW 221
#define TK_SLIDING 222
#define TK_FILL 223
#define TK_VALUE 224
#define TK_NONE 225
#define TK_PREV 226
#define TK_LINEAR 227
#define TK_NEXT 228
#define TK_HAVING 229
#define TK_RANGE 230
#define TK_EVERY 231
#define TK_ORDER 232
#define TK_SLIMIT 233
#define TK_SOFFSET 234
#define TK_LIMIT 235
#define TK_OFFSET 236
#define TK_ASC 237
#define TK_NULLS 238
#define TK_ID 239
#define TK_NK_BITNOT 240
#define TK_INSERT 241
#define TK_VALUES 242
#define TK_IMPORT 243
#define TK_NK_SEMI 244
#define TK_FILE 245
#define TK_CLIENT_VERSION 201
#define TK_SERVER_VERSION 202
#define TK_SERVER_STATUS 203
#define TK_CURRENT_USER 204
#define TK_COUNT 205
#define TK_LAST_ROW 206
#define TK_BETWEEN 207
#define TK_IS 208
#define TK_NK_LT 209
#define TK_NK_GT 210
#define TK_NK_LE 211
#define TK_NK_GE 212
#define TK_NK_NE 213
#define TK_MATCH 214
#define TK_NMATCH 215
#define TK_CONTAINS 216
#define TK_JOIN 217
#define TK_INNER 218
#define TK_SELECT 219
#define TK_DISTINCT 220
#define TK_WHERE 221
#define TK_PARTITION 222
#define TK_BY 223
#define TK_SESSION 224
#define TK_STATE_WINDOW 225
#define TK_SLIDING 226
#define TK_FILL 227
#define TK_VALUE 228
#define TK_NONE 229
#define TK_PREV 230
#define TK_LINEAR 231
#define TK_NEXT 232
#define TK_HAVING 233
#define TK_RANGE 234
#define TK_EVERY 235
#define TK_ORDER 236
#define TK_SLIMIT 237
#define TK_SOFFSET 238
#define TK_LIMIT 239
#define TK_OFFSET 240
#define TK_ASC 241
#define TK_NULLS 242
#define TK_ID 243
#define TK_NK_BITNOT 244
#define TK_INSERT 245
#define TK_VALUES 246
#define TK_IMPORT 247
#define TK_NK_SEMI 248
#define TK_FILE 249
#define TK_NK_SPACE 300
#define TK_NK_COMMENT 301

3
include/libs/function/functionMgt.h
View File

@ -105,7 +105,7 @@ typedef enum EFunctionType {
// system function
FUNCTION_TYPE_DATABASE = 3000,
FUNCTION_TYPE_CLIENT_VERSION,
FUNCTION_TYPE_SERVER_SERSION,
FUNCTION_TYPE_SERVER_VERSION,
FUNCTION_TYPE_SERVER_STATUS,
FUNCTION_TYPE_CURRENT_USER,
FUNCTION_TYPE_USER,
@ -193,6 +193,7 @@ bool fmIsForbidGroupByFunc(int32_t funcId);
bool fmIsIntervalInterpoFunc(int32_t funcId);
bool fmIsInterpFunc(int32_t funcId);
bool fmIsLastRowFunc(int32_t funcId);
bool fmIsSystemInfoFunc(int32_t funcId);
int32_t fmGetDistMethod(const SFunctionNode* pFunc, SFunctionNode** pPartialFunc, SFunctionNode** pMergeFunc);

1
include/libs/nodes/querynodes.h
View File

@ -89,6 +89,7 @@ typedef struct SValueNode {
bool isDuration;
bool translate;
bool notReserved;
bool isNull;
int16_t placeholderNo;
union {
bool b;

2
include/libs/planner/planner.h
View File

@ -48,7 +48,7 @@ int32_t qCreateQueryPlan(SPlanContext* pCxt, SQueryPlan** pPlan, SArray* pExecNo
// @pSource one execution location of this group of datasource subplans
int32_t qSetSubplanExecutionNode(SSubplan* pSubplan, int32_t groupId, SDownstreamSourceNode* pSource);
int32_t qClearSubplanExecutionNode(SSubplan* pSubplan, int32_t groupId);
void qClearSubplanExecutionNode(SSubplan* pSubplan);
// Convert to subplan to string for the scheduler to send to the executor
int32_t qSubPlanToString(const SSubplan* pSubplan, char** pStr, int32_t* pLen);

2
source/client/src/clientMain.c
View File

@ -727,6 +727,8 @@ int32_t createParseContext(const SRequestObj *pRequest, SParseContext **pCxt) {
.schemalessType = pTscObj->schemalessType,
.isSuperUser = (0 == strcmp(pTscObj->user, TSDB_DEFAULT_USER)),
.async = true,
.svrVer = pTscObj->sVer,
.nodeOffline = (pTscObj->pAppInfo->onlineDnodes < pTscObj->pAppInfo->totalDnodes)
};
return TSDB_CODE_SUCCESS;
}

204
source/libs/command/src/command.c
View File

@ -18,7 +18,31 @@
#include "tdatablock.h"
#include "tglobal.h"
extern SConfig *tsCfg;
extern SConfig* tsCfg;
static int32_t buildRetrieveTableRsp(SSDataBlock* pBlock, int32_t numOfCols, SRetrieveTableRsp** pRsp) {
size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
*pRsp = taosMemoryCalloc(1, rspSize);
if (NULL == *pRsp) {
return TSDB_CODE_OUT_OF_MEMORY;
}
(*pRsp)->useconds = 0;
(*pRsp)->completed = 1;
(*pRsp)->precision = 0;
(*pRsp)->compressed = 0;
(*pRsp)->compLen = 0;
(*pRsp)->numOfRows = htonl(pBlock->info.rows);
(*pRsp)->numOfCols = htonl(numOfCols);
int32_t len = 0;
blockCompressEncode(pBlock, (*pRsp)->data, &len, numOfCols, false);
ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
blockDataDestroy(pBlock);
return TSDB_CODE_SUCCESS;
}
static int32_t getSchemaBytes(const SSchema* pSchema) {
switch (pSchema->type) {
case TSDB_DATA_TYPE_BINARY:
@ -89,31 +113,11 @@ static int32_t execDescribe(SNode* pStmt, SRetrieveTableRsp** pRsp) {
SSDataBlock* pBlock = buildDescResultDataBlock();
setDescResultIntoDataBlock(pBlock, numOfRows, pDesc->pMeta);
size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
*pRsp = taosMemoryCalloc(1, rspSize);
if (NULL == *pRsp) {
return TSDB_CODE_OUT_OF_MEMORY;
}
(*pRsp)->useconds = 0;
(*pRsp)->completed = 1;
(*pRsp)->precision = 0;
(*pRsp)->compressed = 0;
(*pRsp)->compLen = 0;
(*pRsp)->numOfRows = htonl(numOfRows);
(*pRsp)->numOfCols = htonl(DESCRIBE_RESULT_COLS);
int32_t len = 0;
blockCompressEncode(pBlock, (*pRsp)->data, &len, DESCRIBE_RESULT_COLS, false);
ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
blockDataDestroy(pBlock);
return TSDB_CODE_SUCCESS;
return buildRetrieveTableRsp(pBlock, DESCRIBE_RESULT_COLS, pRsp);
}
static int32_t execResetQueryCache() { return catalogClearCache(); }
static SSDataBlock* buildCreateDBResultDataBlock() {
SSDataBlock* pBlock = createDataBlock();
SColumnInfoData infoData = createColumnInfoData(TSDB_DATA_TYPE_VARCHAR, SHOW_CREATE_DB_RESULT_COLS, 1);
@ -149,14 +153,14 @@ int64_t getValOfDiffPrecision(int8_t unit, int64_t val) {
return v;
}
char *buildRetension(SArray *pRetension) {
char* buildRetension(SArray* pRetension) {
size_t size = taosArrayGetSize(pRetension);
if (size == 0) {
return NULL;
}
char *p1 = taosMemoryCalloc(1, 100);
SRetention *p = taosArrayGet(pRetension, 0);
char* p1 = taosMemoryCalloc(1, 100);
SRetention* p = taosArrayGet(pRetension, 0);
int32_t len = 0;
@ -185,8 +189,7 @@ char *buildRetension(SArray *pRetension) {
return p1;
}
static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char *dbFName, SDbCfgInfo* pCfg) {
static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char* dbFName, SDbCfgInfo* pCfg) {
blockDataEnsureCapacity(pBlock, 1);
pBlock->info.rows = 1;
@ -198,7 +201,7 @@ static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char *dbFName, S
SColumnInfoData* pCol2 = taosArrayGet(pBlock->pDataBlock, 1);
char buf2[SHOW_CREATE_DB_RESULT_FIELD2_LEN] = {0};
int32_t len = 0;
char *prec = NULL;
char* prec = NULL;
switch (pCfg->precision) {
case TSDB_TIME_PRECISION_MILLI:
prec = TSDB_TIME_PRECISION_MILLI_STR;
@ -214,14 +217,15 @@ static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char *dbFName, S
break;
}
char *retentions = buildRetension(pCfg->pRetensions);
char* retentions = buildRetension(pCfg->pRetensions);
len += sprintf(buf2 + VARSTR_HEADER_SIZE, "CREATE DATABASE `%s` BUFFER %d CACHELAST %d COMP %d DURATION %dm "
len += sprintf(buf2 + VARSTR_HEADER_SIZE,
"CREATE DATABASE `%s` BUFFER %d CACHELAST %d COMP %d DURATION %dm "
"FSYNC %d MAXROWS %d MINROWS %d KEEP %dm,%dm,%dm PAGES %d PAGESIZE %d PRECISION '%s' REPLICA %d "
"STRICT %d WAL %d VGROUPS %d SINGLE_STABLE %d",
dbFName, pCfg->buffer, pCfg->cacheLastRow, pCfg->compression, pCfg->daysPerFile,
pCfg->fsyncPeriod, pCfg->maxRows, pCfg->minRows, pCfg->daysToKeep0, pCfg->daysToKeep1, pCfg->daysToKeep2,
pCfg->pages, pCfg->pageSize, prec, pCfg->replications, pCfg->strict, pCfg->walLevel, pCfg->numOfVgroups,
dbFName, pCfg->buffer, pCfg->cacheLastRow, pCfg->compression, pCfg->daysPerFile, pCfg->fsyncPeriod,
pCfg->maxRows, pCfg->minRows, pCfg->daysToKeep0, pCfg->daysToKeep1, pCfg->daysToKeep2, pCfg->pages,
pCfg->pageSize, prec, pCfg->replications, pCfg->strict, pCfg->walLevel, pCfg->numOfVgroups,
1 == pCfg->numOfStables);
if (retentions) {
@ -234,31 +238,10 @@ static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char *dbFName, S
colDataAppend(pCol2, 0, buf2, false);
}
static int32_t execShowCreateDatabase(SShowCreateDatabaseStmt* pStmt, SRetrieveTableRsp** pRsp) {
SSDataBlock* pBlock = buildCreateDBResultDataBlock();
setCreateDBResultIntoDataBlock(pBlock, pStmt->dbName, pStmt->pCfg);
size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
*pRsp = taosMemoryCalloc(1, rspSize);
if (NULL == *pRsp) {
return TSDB_CODE_OUT_OF_MEMORY;
}
(*pRsp)->useconds = 0;
(*pRsp)->completed = 1;
(*pRsp)->precision = 0;
(*pRsp)->compressed = 0;
(*pRsp)->compLen = 0;
(*pRsp)->numOfRows = htonl(1);
(*pRsp)->numOfCols = htonl(SHOW_CREATE_DB_RESULT_COLS);
int32_t len = 0;
blockCompressEncode(pBlock, (*pRsp)->data, &len, SHOW_CREATE_DB_RESULT_COLS, false);
ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
blockDataDestroy(pBlock);
return TSDB_CODE_SUCCESS;
return buildRetrieveTableRsp(pBlock, SHOW_CREATE_DB_RESULT_COLS, pRsp);
}
static SSDataBlock* buildCreateTbResultDataBlock() {
@ -281,7 +264,7 @@ void appendColumnFields(char* buf, int32_t* len, STableCfg* pCfg) {
if (TSDB_DATA_TYPE_VARCHAR == pSchema->type) {
sprintf(type + strlen(type), "(%d)", (int32_t)(pSchema->bytes - VARSTR_HEADER_SIZE));
} else if (TSDB_DATA_TYPE_NCHAR == pSchema->type) {
sprintf(type + strlen(type), "(%d)", (int32_t)((pSchema->bytes - VARSTR_HEADER_SIZE)/TSDB_NCHAR_SIZE));
sprintf(type + strlen(type), "(%d)", (int32_t)((pSchema->bytes - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE));
}
*len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s`%s` %s", ((i > 0) ? ", " : ""), pSchema->name, type);
@ -296,14 +279,13 @@ void appendTagFields(char* buf, int32_t* len, STableCfg* pCfg) {
if (TSDB_DATA_TYPE_VARCHAR == pSchema->type) {
sprintf(type + strlen(type), "(%d)", (int32_t)(pSchema->bytes - VARSTR_HEADER_SIZE));
} else if (TSDB_DATA_TYPE_NCHAR == pSchema->type) {
sprintf(type + strlen(type), "(%d)", (int32_t)((pSchema->bytes - VARSTR_HEADER_SIZE)/TSDB_NCHAR_SIZE));
sprintf(type + strlen(type), "(%d)", (int32_t)((pSchema->bytes - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE));
}
*len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s`%s` %s", ((i > 0) ? ", " : ""), pSchema->name, type);
}
}
void appendTagNameFields(char* buf, int32_t* len, STableCfg* pCfg) {
for (int32_t i = 0; i < pCfg->numOfTags; ++i) {
SSchema* pSchema = pCfg->pSchemas + pCfg->numOfColumns + i;
@ -311,13 +293,12 @@ void appendTagNameFields(char* buf, int32_t* len, STableCfg* pCfg) {
}
}
int32_t appendTagValues(char* buf, int32_t* len, STableCfg* pCfg) {
SArray *pTagVals = NULL;
STag *pTag = (STag*)pCfg->pTags;
SArray* pTagVals = NULL;
STag* pTag = (STag*)pCfg->pTags;
if (pCfg->pTags && pTag->flags & TD_TAG_JSON) {
char *pJson = parseTagDatatoJson(pTag);
char* pJson = parseTagDatatoJson(pTag);
if (pJson) {
*len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s", pJson);
taosMemoryFree(pJson);
@ -326,7 +307,7 @@ int32_t appendTagValues(char* buf, int32_t* len, STableCfg* pCfg) {
return TSDB_CODE_SUCCESS;
}
int32_t code = tTagToValArray((const STag *)pCfg->pTags, &pTagVals);
int32_t code = tTagToValArray((const STag*)pCfg->pTags, &pTagVals);
if (code) {
return code;
}
@ -345,7 +326,7 @@ int32_t appendTagValues(char* buf, int32_t* len, STableCfg* pCfg) {
continue;
}
STagVal *pTagVal = (STagVal *)taosArrayGet(pTagVals, j);
STagVal* pTagVal = (STagVal*)taosArrayGet(pTagVals, j);
if (pSchema->colId > pTagVal->cid) {
qError("tag value and column mismatch, schemaId:%d, valId:%d", pSchema->colId, pTagVal->cid);
taosArrayDestroy(pTagVals);
@ -365,7 +346,6 @@ int32_t appendTagValues(char* buf, int32_t* len, STableCfg* pCfg) {
*len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "NULL");
}
/*
if (type == TSDB_DATA_TYPE_BINARY) {
if (pTagVal->nData > 0) {
@ -436,7 +416,7 @@ void appendTableOptions(char* buf, int32_t* len, STableCfg* pCfg) {
}
}
static int32_t setCreateTBResultIntoDataBlock(SSDataBlock* pBlock, char *tbName, STableCfg* pCfg) {
static int32_t setCreateTBResultIntoDataBlock(SSDataBlock* pBlock, char* tbName, STableCfg* pCfg) {
int32_t code = 0;
blockDataEnsureCapacity(pBlock, 1);
pBlock->info.rows = 1;
@ -480,34 +460,13 @@ static int32_t setCreateTBResultIntoDataBlock(SSDataBlock* pBlock, char *tbName,
return TSDB_CODE_SUCCESS;
}
static int32_t execShowCreateTable(SShowCreateTableStmt* pStmt, SRetrieveTableRsp** pRsp) {
SSDataBlock* pBlock = buildCreateTbResultDataBlock();
int32_t code = setCreateTBResultIntoDataBlock(pBlock, pStmt->tableName, pStmt->pCfg);
if (code) {
return code;
}
size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
*pRsp = taosMemoryCalloc(1, rspSize);
if (NULL == *pRsp) {
return TSDB_CODE_OUT_OF_MEMORY;
}
(*pRsp)->useconds = 0;
(*pRsp)->completed = 1;
(*pRsp)->precision = 0;
(*pRsp)->compressed = 0;
(*pRsp)->compLen = 0;
(*pRsp)->numOfRows = htonl(1);
(*pRsp)->numOfCols = htonl(SHOW_CREATE_TB_RESULT_COLS);
int32_t len = 0;
blockCompressEncode(pBlock, (*pRsp)->data, &len, SHOW_CREATE_TB_RESULT_COLS, false);
ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
blockDataDestroy(pBlock);
return TSDB_CODE_SUCCESS;
return buildRetrieveTableRsp(pBlock, SHOW_CREATE_TB_RESULT_COLS, pRsp);
}
static int32_t execShowCreateSTable(SShowCreateTableStmt* pStmt, SRetrieveTableRsp** pRsp) {
@ -551,18 +510,17 @@ static SSDataBlock* buildLocalVariablesResultDataBlock() {
return pBlock;
}
int32_t setLocalVariablesResultIntoDataBlock(SSDataBlock* pBlock) {
int32_t numOfCfg = taosArrayGetSize(tsCfg->array);
int32_t numOfRows = 0;
blockDataEnsureCapacity(pBlock, numOfCfg);
for (int32_t i = 0, c = 0; i < numOfCfg; ++i, c = 0) {
SConfigItem *pItem = taosArrayGet(tsCfg->array, i);
SConfigItem* pItem = taosArrayGet(tsCfg->array, i);
char name[TSDB_CONFIG_OPTION_LEN + VARSTR_HEADER_SIZE] = {0};
STR_WITH_MAXSIZE_TO_VARSTR(name, pItem->name, TSDB_CONFIG_OPTION_LEN + VARSTR_HEADER_SIZE);
SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, c++);
SColumnInfoData* pColInfo = taosArrayGet(pBlock->pDataBlock, c++);
colDataAppend(pColInfo, i, name, false);
char value[TSDB_CONFIG_VALUE_LEN + VARSTR_HEADER_SIZE] = {0};
@ -575,42 +533,70 @@ int32_t setLocalVariablesResultIntoDataBlock(SSDataBlock* pBlock) {
numOfRows++;
}
pBlock->info.rows = numOfRows;
return TSDB_CODE_SUCCESS;
}
static int32_t execShowLocalVariables(SRetrieveTableRsp** pRsp) {
SSDataBlock* pBlock = buildLocalVariablesResultDataBlock();
int32_t code = setLocalVariablesResultIntoDataBlock(pBlock);
if (code) {
return code;
}
return buildRetrieveTableRsp(pBlock, SHOW_LOCAL_VARIABLES_RESULT_COLS, pRsp);
}
size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
*pRsp = taosMemoryCalloc(1, rspSize);
if (NULL == *pRsp) {
static int32_t createSelectResultDataBlock(SNodeList* pProjects, SSDataBlock** pOutput) {
SSDataBlock* pBlock = taosMemoryCalloc(1, sizeof(SSDataBlock));
if (NULL == pBlock) {
return TSDB_CODE_OUT_OF_MEMORY;
}
(*pRsp)->useconds = 0;
(*pRsp)->completed = 1;
(*pRsp)->precision = 0;
(*pRsp)->compressed = 0;
(*pRsp)->compLen = 0;
(*pRsp)->numOfRows = htonl(pBlock->info.rows);
(*pRsp)->numOfCols = htonl(SHOW_LOCAL_VARIABLES_RESULT_COLS);
pBlock->pDataBlock = taosArrayInit(LIST_LENGTH(pProjects), sizeof(SColumnInfoData));
int32_t len = 0;
blockCompressEncode(pBlock, (*pRsp)->data, &len, SHOW_LOCAL_VARIABLES_RESULT_COLS, false);
ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
blockDataDestroy(pBlock);
SNode* pProj = NULL;
FOREACH(pProj, pProjects) {
SColumnInfoData infoData = {0};
infoData.info.type = ((SExprNode*)pProj)->resType.type;
infoData.info.bytes = ((SExprNode*)pProj)->resType.bytes;
taosArrayPush(pBlock->pDataBlock, &infoData);
}
*pOutput = pBlock;
return TSDB_CODE_SUCCESS;
}
int32_t buildSelectResultDataBlock(SNodeList* pProjects, SSDataBlock* pBlock) {
int32_t numOfCols = LIST_LENGTH(pProjects);
blockDataEnsureCapacity(pBlock, 1);
int32_t index = 0;
SNode* pProj = NULL;
FOREACH(pProj, pProjects) {
if (((SValueNode*)pProj)->isNull) {
colDataAppend(taosArrayGet(pBlock->pDataBlock, index++), 0, NULL, true);
} else {
colDataAppend(taosArrayGet(pBlock->pDataBlock, index++), 0, nodesGetValueFromNode((SValueNode*)pProj), false);
}
}
pBlock->info.rows = 1;
return TSDB_CODE_SUCCESS;
}
static int32_t execSelectWithoutFrom(SSelectStmt* pSelect, SRetrieveTableRsp** pRsp) {
SSDataBlock* pBlock = NULL;
int32_t code = createSelectResultDataBlock(pSelect->pProjectionList, &pBlock);
if (TSDB_CODE_SUCCESS == code) {
code = buildSelectResultDataBlock(pSelect->pProjectionList, pBlock);
}
if (TSDB_CODE_SUCCESS == code) {
code = buildRetrieveTableRsp(pBlock, LIST_LENGTH(pSelect->pProjectionList), pRsp);
}
return code;
}
int32_t qExecCommand(SNode* pStmt, SRetrieveTableRsp** pRsp) {
switch (nodeType(pStmt)) {
case QUERY_NODE_DESCRIBE_STMT:
@ -627,6 +613,8 @@ int32_t qExecCommand(SNode* pStmt, SRetrieveTableRsp** pRsp) {
return execAlterLocal((SAlterLocalStmt*)pStmt);
case QUERY_NODE_SHOW_LOCAL_VARIABLES_STMT:
return execShowLocalVariables(pRsp);
case QUERY_NODE_SELECT_STMT:
return execSelectWithoutFrom((SSelectStmt*)pStmt, pRsp);
default:
break;
}

1
source/libs/function/inc/functionMgtInt.h
View File

@ -46,6 +46,7 @@ extern "C" {
#define FUNC_MGT_FORBID_STREAM_FUNC FUNC_MGT_FUNC_CLASSIFICATION_MASK(17)
#define FUNC_MGT_FORBID_WINDOW_FUNC FUNC_MGT_FUNC_CLASSIFICATION_MASK(18)
#define FUNC_MGT_FORBID_GROUP_BY_FUNC FUNC_MGT_FUNC_CLASSIFICATION_MASK(19)
#define FUNC_MGT_SYSTEM_INFO_FUNC FUNC_MGT_FUNC_CLASSIFICATION_MASK(20)
#define FUNC_MGT_TEST_MASK(val, mask) (((val) & (mask)) != 0)

66
source/libs/function/src/builtins.c
View File

@ -1539,6 +1539,36 @@ static int32_t translateGroupKey(SFunctionNode* pFunc, char* pErrBuf, int32_t le
return TSDB_CODE_SUCCESS;
}
static int32_t translateDatabaseFunc(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
pFunc->node.resType = (SDataType){.bytes = TSDB_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR};
return TSDB_CODE_SUCCESS;
}
static int32_t translateClientVersionFunc(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
pFunc->node.resType = (SDataType){.bytes = TSDB_VERSION_LEN, .type = TSDB_DATA_TYPE_VARCHAR};
return TSDB_CODE_SUCCESS;
}
static int32_t translateServerVersionFunc(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
pFunc->node.resType = (SDataType){.bytes = TSDB_VERSION_LEN, .type = TSDB_DATA_TYPE_VARCHAR};
return TSDB_CODE_SUCCESS;
}
static int32_t translateServerStatusFunc(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_INT].bytes, .type = TSDB_DATA_TYPE_INT};
return TSDB_CODE_SUCCESS;
}
static int32_t translateCurrentUserFunc(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
pFunc->node.resType = (SDataType){.bytes = TSDB_USER_LEN, .type = TSDB_DATA_TYPE_VARCHAR};
return TSDB_CODE_SUCCESS;
}
static int32_t translateUserFunc(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
pFunc->node.resType = (SDataType){.bytes = TSDB_USER_LEN, .type = TSDB_DATA_TYPE_VARCHAR};
return TSDB_CODE_SUCCESS;
}
// clang-format off
const SBuiltinFuncDefinition funcMgtBuiltins[] = {
{
@ -2546,6 +2576,42 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.pPartialFunc = "_group_key",
.pMergeFunc = "_group_key"
},
{
.name = "database",
.type = FUNCTION_TYPE_DATABASE,
.classification = FUNC_MGT_SYSTEM_INFO_FUNC | FUNC_MGT_SCALAR_FUNC,
.translateFunc = translateDatabaseFunc,
},
{
.name = "client_version",
.type = FUNCTION_TYPE_CLIENT_VERSION,
.classification = FUNC_MGT_SYSTEM_INFO_FUNC | FUNC_MGT_SCALAR_FUNC,
.translateFunc = translateClientVersionFunc,
},
{
.name = "server_version",
.type = FUNCTION_TYPE_SERVER_VERSION,
.classification = FUNC_MGT_SYSTEM_INFO_FUNC | FUNC_MGT_SCALAR_FUNC,
.translateFunc = translateServerVersionFunc,
},
{
.name = "server_status",
.type = FUNCTION_TYPE_SERVER_STATUS,
.classification = FUNC_MGT_SYSTEM_INFO_FUNC | FUNC_MGT_SCALAR_FUNC,
.translateFunc = translateServerStatusFunc,
},
{
.name = "current_user",
.type = FUNCTION_TYPE_CURRENT_USER,
.classification = FUNC_MGT_SYSTEM_INFO_FUNC | FUNC_MGT_SCALAR_FUNC,
.translateFunc = translateCurrentUserFunc,
},
{
.name = "user",
.type = FUNCTION_TYPE_USER,
.classification = FUNC_MGT_SYSTEM_INFO_FUNC | FUNC_MGT_SCALAR_FUNC,
.translateFunc = translateUserFunc,
},
};
// clang-format on

2
source/libs/function/src/functionMgt.c
View File

@ -179,6 +179,8 @@ bool fmIsForbidWindowFunc(int32_t funcId) { return isSpecificClassifyFunc(funcId
bool fmIsForbidGroupByFunc(int32_t funcId) { return isSpecificClassifyFunc(funcId, FUNC_MGT_FORBID_GROUP_BY_FUNC); }
bool fmIsSystemInfoFunc(int32_t funcId) { return isSpecificClassifyFunc(funcId, FUNC_MGT_SYSTEM_INFO_FUNC); }
bool fmIsInterpFunc(int32_t funcId) {
if (funcId < 0 || funcId >= funcMgtBuiltinsNum) {
return false;

6
source/libs/parser/inc/sql.y
View File

@ -685,6 +685,12 @@ literal_func(A) ::= NOW(B).
noarg_func(A) ::= NOW(B). { A = B; }
noarg_func(A) ::= TODAY(B). { A = B; }
noarg_func(A) ::= TIMEZONE(B). { A = B; }
noarg_func(A) ::= DATABASE(B). { A = B; }
noarg_func(A) ::= CLIENT_VERSION(B). { A = B; }
noarg_func(A) ::= SERVER_VERSION(B). { A = B; }
noarg_func(A) ::= SERVER_STATUS(B). { A = B; }
noarg_func(A) ::= CURRENT_USER(B). { A = B; }
noarg_func(A) ::= USER(B). { A = B; }
%type star_func { SToken }
%destructor star_func { }

6
source/libs/parser/src/parTokenizer.c
View File

@ -54,6 +54,7 @@ static SKeyword keywordTable[] = {
{"CACHE", TK_CACHE},
{"CACHELAST", TK_CACHELAST},
{"CAST", TK_CAST},
{"CLIENT_VERSION", TK_CLIENT_VERSION},
{"CLUSTER", TK_CLUSTER},
{"COLUMN", TK_COLUMN},
{"COMMENT", TK_COMMENT},
@ -64,9 +65,10 @@ static SKeyword keywordTable[] = {
{"CONNECTIONS", TK_CONNECTIONS},
{"CONSUMER", TK_CONSUMER},
{"CONSUMERS", TK_CONSUMERS},
{"CONTAINS", TK_CONTAINS},
{"COUNT", TK_COUNT},
{"CREATE", TK_CREATE},
{"CONTAINS", TK_CONTAINS},
{"CURRENT_USER", TK_CURRENT_USER},
{"DATABASE", TK_DATABASE},
{"DATABASES", TK_DATABASES},
{"DBS", TK_DBS},
@ -169,6 +171,8 @@ static SKeyword keywordTable[] = {
{"SCHEMALESS", TK_SCHEMALESS},
{"SCORES", TK_SCORES},
{"SELECT", TK_SELECT},
{"SERVER_STATUS", TK_SERVER_STATUS},
{"SERVER_VERSION", TK_SERVER_VERSION},
{"SESSION", TK_SESSION},
{"SET", TK_SET},
{"SHOW", TK_SHOW},

281
source/libs/parser/src/parTranslater.c
View File

@ -35,8 +35,7 @@ typedef struct STranslateContext {
SArray* pNsLevel; // element is SArray*, the element of this subarray is STableNode*
int32_t currLevel;
ESqlClause currClause;
SSelectStmt* pCurrSelectStmt;
SSetOperator* pCurrSetOperator;
SNode* pCurrStmt;
SCmdMsgInfo* pCmdMsg;
SHashObj* pDbs;
SHashObj* pTables;
@ -397,6 +396,34 @@ static void destroyTranslateContext(STranslateContext* pCxt) {
taosHashCleanup(pCxt->pTables);
}
static bool isSelectStmt(SNode* pCurrStmt) {
return NULL != pCurrStmt && QUERY_NODE_SELECT_STMT == nodeType(pCurrStmt);
}
static bool isSetOperator(SNode* pCurrStmt) {
return NULL != pCurrStmt && QUERY_NODE_SET_OPERATOR == nodeType(pCurrStmt);
}
static SNodeList* getProjectListFromCurrStmt(SNode* pCurrStmt) {
if (isSelectStmt(pCurrStmt)) {
return ((SSelectStmt*)pCurrStmt)->pProjectionList;
}
if (isSetOperator(pCurrStmt)) {
return ((SSetOperator*)pCurrStmt)->pProjectionList;
}
return NULL;
}
static uint8_t getPrecisionFromCurrStmt(SNode* pCurrStmt, uint8_t defaultVal) {
if (isSelectStmt(pCurrStmt)) {
return ((SSelectStmt*)pCurrStmt)->precision;
}
if (isSetOperator(pCurrStmt)) {
return ((SSetOperator*)pCurrStmt)->precision;
}
return defaultVal;
}
static bool isAliasColumn(const SNode* pNode) {
return (QUERY_NODE_COLUMN == nodeType(pNode) && ('\0' == ((SColumnNode*)pNode)->tableAlias[0]));
}
@ -426,7 +453,8 @@ static bool isVectorFunc(const SNode* pNode) {
}
static bool isDistinctOrderBy(STranslateContext* pCxt) {
return (SQL_CLAUSE_ORDER_BY == pCxt->currClause && pCxt->pCurrSelectStmt->isDistinct);
return (SQL_CLAUSE_ORDER_BY == pCxt->currClause && isSelectStmt(pCxt->pCurrStmt) &&
((SSelectStmt*)pCxt->pCurrStmt)->isDistinct);
}
static bool belongTable(const char* currentDb, const SColumnNode* pCol, const STableNode* pTable) {
@ -646,7 +674,7 @@ static EDealRes translateColumnWithoutPrefix(STranslateContext* pCxt, SColumnNod
}
if (!found) {
if (isInternalPk) {
if (NULL != pCxt->pCurrSelectStmt && NULL != pCxt->pCurrSelectStmt->pWindow) {
if (isSelectStmt(pCxt->pCurrStmt) && NULL != ((SSelectStmt*)pCxt->pCurrStmt)->pWindow) {
return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_NOT_ALLOWED_WIN_QUERY);
}
return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_INVALID_INTERNAL_PK);
@ -657,18 +685,8 @@ static EDealRes translateColumnWithoutPrefix(STranslateContext* pCxt, SColumnNod
return DEAL_RES_CONTINUE;
}
static SNodeList* getProjectListFromCxt(STranslateContext* pCxt) {
if (NULL != pCxt->pCurrSelectStmt) {
return pCxt->pCurrSelectStmt->pProjectionList;
} else if (NULL != pCxt->pCurrSetOperator) {
return pCxt->pCurrSetOperator->pProjectionList;
} else {
return NULL;
}
}
static EDealRes translateColumnUseAlias(STranslateContext* pCxt, SColumnNode** pCol, bool* pFound) {
SNodeList* pProjectionList = getProjectListFromCxt(pCxt);
SNodeList* pProjectionList = getProjectListFromCurrStmt(pCxt->pCurrStmt);
SNode* pNode;
FOREACH(pNode, pProjectionList) {
SExprNode* pExpr = (SExprNode*)pNode;
@ -690,7 +708,7 @@ static EDealRes translateColumnUseAlias(STranslateContext* pCxt, SColumnNode** p
}
static EDealRes translateColumn(STranslateContext* pCxt, SColumnNode** pCol) {
if (NULL != pCxt->pCurrSelectStmt && NULL == pCxt->pCurrSelectStmt->pFromTable) {
if (isSelectStmt(pCxt->pCurrStmt) && NULL == ((SSelectStmt*)pCxt->pCurrStmt)->pFromTable) {
return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_INVALID_COLUMN, (*pCol)->colName);
}
@ -708,7 +726,7 @@ static EDealRes translateColumn(STranslateContext* pCxt, SColumnNode** pCol) {
res = translateColumnUseAlias(pCxt, pCol, &found);
}
if (DEAL_RES_ERROR != res && !found) {
if (NULL != pCxt->pCurrSetOperator) {
if (isSetOperator(pCxt->pCurrStmt)) {
res = generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_INVALID_COLUMN, (*pCol)->colName);
} else {
res = translateColumnWithoutPrefix(pCxt, pCol);
@ -760,9 +778,9 @@ static int32_t parseBoolFromValueNode(STranslateContext* pCxt, SValueNode* pVal)
}
static EDealRes translateValueImpl(STranslateContext* pCxt, SValueNode* pVal, SDataType targetDt) {
uint8_t precision = (NULL != pCxt->pCurrSelectStmt ? pCxt->pCurrSelectStmt->precision : targetDt.precision);
uint8_t precision = getPrecisionFromCurrStmt(pCxt->pCurrStmt, targetDt.precision);
pVal->node.resType.precision = precision;
if (pVal->placeholderNo > 0) {
if (pVal->placeholderNo > 0 || pVal->isNull) {
return DEAL_RES_CONTINUE;
}
if (pVal->isDuration) {
@ -1102,6 +1120,8 @@ static bool hasInvalidFuncNesting(SNodeList* pParameterList) {
}
static int32_t getFuncInfo(STranslateContext* pCxt, SFunctionNode* pFunc) {
// the time precision of the function execution environment
pFunc->node.resType.precision = getPrecisionFromCurrStmt(pCxt->pCurrStmt, TSDB_TIME_PRECISION_MILLI);
int32_t code = fmGetFuncInfo(pFunc, pCxt->msgBuf.buf, pCxt->msgBuf.len);
if (TSDB_CODE_FUNC_NOT_BUILTIN_FUNTION == code) {
code = getUdfInfo(pCxt, pFunc);
@ -1119,7 +1139,7 @@ static int32_t translateAggFunc(STranslateContext* pCxt, SFunctionNode* pFunc) {
if (hasInvalidFuncNesting(pFunc->pParameterList)) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_AGG_FUNC_NESTING);
}
if (NULL != pCxt->pCurrSelectStmt && pCxt->pCurrSelectStmt->hasIndefiniteRowsFunc) {
if (isSelectStmt(pCxt->pCurrStmt) && ((SSelectStmt*)pCxt->pCurrStmt)->hasIndefiniteRowsFunc) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_NOT_ALLOWED_FUNC);
}
@ -1134,7 +1154,8 @@ static int32_t translateScanPseudoColumnFunc(STranslateContext* pCxt, SFunctionN
return TSDB_CODE_SUCCESS;
}
if (0 == LIST_LENGTH(pFunc->pParameterList)) {
if (QUERY_NODE_REAL_TABLE != nodeType(pCxt->pCurrSelectStmt->pFromTable)) {
if (!isSelectStmt(pCxt->pCurrStmt) ||
QUERY_NODE_REAL_TABLE != nodeType(((SSelectStmt*)pCxt->pCurrStmt)->pFromTable)) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_TBNAME);
}
} else {
@ -1152,8 +1173,8 @@ static int32_t translateIndefiniteRowsFunc(STranslateContext* pCxt, SFunctionNod
if (!fmIsIndefiniteRowsFunc(pFunc->funcId)) {
return TSDB_CODE_SUCCESS;
}
if (SQL_CLAUSE_SELECT != pCxt->currClause || pCxt->pCurrSelectStmt->hasIndefiniteRowsFunc ||
pCxt->pCurrSelectStmt->hasAggFuncs) {
if (!isSelectStmt(pCxt->pCurrStmt) || SQL_CLAUSE_SELECT != pCxt->currClause ||
((SSelectStmt*)pCxt->pCurrStmt)->hasIndefiniteRowsFunc || ((SSelectStmt*)pCxt->pCurrStmt)->hasAggFuncs) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_NOT_ALLOWED_FUNC);
}
if (hasInvalidFuncNesting(pFunc->pParameterList)) {
@ -1162,13 +1183,20 @@ static int32_t translateIndefiniteRowsFunc(STranslateContext* pCxt, SFunctionNod
return TSDB_CODE_SUCCESS;
}
static bool hasFillClause(SNode* pCurrStmt) {
if (!isSelectStmt(pCurrStmt)) {
return false;
}
SSelectStmt* pSelect = (SSelectStmt*)pCurrStmt;
return NULL != pSelect->pWindow && QUERY_NODE_INTERVAL_WINDOW == nodeType(pSelect->pWindow) &&
NULL != ((SIntervalWindowNode*)pSelect->pWindow)->pFill;
}
static int32_t translateForbidFillFunc(STranslateContext* pCxt, SFunctionNode* pFunc) {
if (!fmIsForbidFillFunc(pFunc->funcId)) {
return TSDB_CODE_SUCCESS;
}
if (NULL != pCxt->pCurrSelectStmt->pWindow &&
QUERY_NODE_INTERVAL_WINDOW == nodeType(pCxt->pCurrSelectStmt->pWindow) &&
NULL != ((SIntervalWindowNode*)pCxt->pCurrSelectStmt->pWindow)->pFill) {
if (hasFillClause(pCxt->pCurrStmt)) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_FILL_NOT_ALLOWED_FUNC, pFunc->functionName);
}
return TSDB_CODE_SUCCESS;
@ -1178,7 +1206,7 @@ static int32_t translateWindowPseudoColumnFunc(STranslateContext* pCxt, SFunctio
if (!fmIsWindowPseudoColumnFunc(pFunc->funcId)) {
return TSDB_CODE_SUCCESS;
}
if (NULL == pCxt->pCurrSelectStmt->pWindow) {
if (!isSelectStmt(pCxt->pCurrStmt) || NULL == ((SSelectStmt*)pCxt->pCurrStmt)->pWindow) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_WINDOW_PC);
}
return TSDB_CODE_SUCCESS;
@ -1188,7 +1216,7 @@ static int32_t translateForbidWindowFunc(STranslateContext* pCxt, SFunctionNode*
if (!fmIsForbidWindowFunc(pFunc->funcId)) {
return TSDB_CODE_SUCCESS;
}
if (NULL != pCxt->pCurrSelectStmt->pWindow) {
if (isSelectStmt(pCxt->pCurrStmt) && NULL != ((SSelectStmt*)pCxt->pCurrStmt)->pWindow) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_WINDOW_NOT_ALLOWED_FUNC, pFunc->functionName);
}
return TSDB_CODE_SUCCESS;
@ -1208,14 +1236,15 @@ static int32_t translateForbidGroupByFunc(STranslateContext* pCxt, SFunctionNode
if (!fmIsForbidGroupByFunc(pFunc->funcId)) {
return TSDB_CODE_SUCCESS;
}
if (NULL != pCxt->pCurrSelectStmt->pGroupByList) {
if (isSelectStmt(pCxt->pCurrStmt) && NULL != ((SSelectStmt*)pCxt->pCurrStmt)->pGroupByList) {
return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_GROUP_BY_NOT_ALLOWED_FUNC, pFunc->functionName);
}
return TSDB_CODE_SUCCESS;
}
static void setFuncClassification(SSelectStmt* pSelect, SFunctionNode* pFunc) {
if (NULL != pSelect) {
static void setFuncClassification(SNode* pCurrStmt, SFunctionNode* pFunc) {
if (NULL != pCurrStmt && QUERY_NODE_SELECT_STMT == nodeType(pCurrStmt)) {
SSelectStmt* pSelect = (SSelectStmt*)pCurrStmt;
pSelect->hasAggFuncs = pSelect->hasAggFuncs ? true : fmIsAggFunc(pFunc->funcId);
pSelect->hasRepeatScanFuncs = pSelect->hasRepeatScanFuncs ? true : fmIsRepeatScanFunc(pFunc->funcId);
pSelect->hasIndefiniteRowsFunc = pSelect->hasIndefiniteRowsFunc ? true : fmIsIndefiniteRowsFunc(pFunc->funcId);
@ -1226,41 +1255,138 @@ static void setFuncClassification(SSelectStmt* pSelect, SFunctionNode* pFunc) {
}
}
static EDealRes translateFunction(STranslateContext* pCxt, SFunctionNode* pFunc) {
static int32_t rewriteSystemInfoFuncImpl(STranslateContext* pCxt, char* pLiteral, SNode** pNode) {
SValueNode* pVal = (SValueNode*)nodesMakeNode(QUERY_NODE_VALUE);
if (NULL == pVal) {
return TSDB_CODE_OUT_OF_MEMORY;
}
strcpy(pVal->node.aliasName, ((SExprNode*)*pNode)->aliasName);
pVal->node.resType = ((SExprNode*)*pNode)->resType;
if (NULL == pLiteral) {
pVal->isNull = true;
} else {
pVal->literal = pLiteral;
}
if (DEAL_RES_ERROR != translateValue(pCxt, pVal)) {
*pNode = (SNode*)pVal;
} else {
nodesDestroyNode((SNode*)pVal);
}
return pCxt->errCode;
}
static int32_t rewriteDatabaseFunc(STranslateContext* pCxt, SNode** pNode) {
char* pCurrDb = NULL;
if (NULL != pCxt->pParseCxt->db) {
pCurrDb = taosMemoryStrDup((void*)pCxt->pParseCxt->db);
if (NULL == pCurrDb) {
return TSDB_CODE_OUT_OF_MEMORY;
}
}
return rewriteSystemInfoFuncImpl(pCxt, pCurrDb, pNode);
}
static int32_t rewriteClentVersionFunc(STranslateContext* pCxt, SNode** pNode) {
char* pVer = taosMemoryStrDup((void*)version);
if (NULL == pVer) {
return TSDB_CODE_OUT_OF_MEMORY;
}
return rewriteSystemInfoFuncImpl(pCxt, pVer, pNode);
}
static int32_t rewriteServerVersionFunc(STranslateContext* pCxt, SNode** pNode) {
char* pVer = taosMemoryStrDup((void*)pCxt->pParseCxt->svrVer);
if (NULL == pVer) {
return TSDB_CODE_OUT_OF_MEMORY;
}
return rewriteSystemInfoFuncImpl(pCxt, pVer, pNode);
}
static int32_t rewriteServerStatusFunc(STranslateContext* pCxt, SNode** pNode) {
if (pCxt->pParseCxt->nodeOffline) {
return TSDB_CODE_RPC_NETWORK_UNAVAIL;
}
char* pStatus = taosMemoryStrDup((void*)"1");
return rewriteSystemInfoFuncImpl(pCxt, pStatus, pNode);
}
static int32_t rewriteUserFunc(STranslateContext* pCxt, SNode** pNode) {
char userConn[TSDB_USER_LEN + 1 + TSDB_FQDN_LEN] = {0}; // format 'user@host'
int32_t len = snprintf(userConn, sizeof(userConn), "%s@", pCxt->pParseCxt->pUser);
taosGetFqdn(userConn + len);
char* pUserConn = taosMemoryStrDup((void*)userConn);
if (NULL == pUserConn) {
return TSDB_CODE_OUT_OF_MEMORY;
}
return rewriteSystemInfoFuncImpl(pCxt, pUserConn, pNode);
}
static int32_t rewriteSystemInfoFunc(STranslateContext* pCxt, SNode** pNode) {
switch (((SFunctionNode*)*pNode)->funcType) {
case FUNCTION_TYPE_DATABASE:
return rewriteDatabaseFunc(pCxt, pNode);
case FUNCTION_TYPE_CLIENT_VERSION:
return rewriteClentVersionFunc(pCxt, pNode);
case FUNCTION_TYPE_SERVER_VERSION:
return rewriteServerVersionFunc(pCxt, pNode);
case FUNCTION_TYPE_SERVER_STATUS:
return rewriteServerStatusFunc(pCxt, pNode);
case FUNCTION_TYPE_CURRENT_USER:
case FUNCTION_TYPE_USER:
return rewriteUserFunc(pCxt, pNode);
default:
break;
}
return TSDB_CODE_PAR_INTERNAL_ERROR;
}
static int32_t translateNoramlFunction(STranslateContext* pCxt, SFunctionNode* pFunc) {
int32_t code = translateAggFunc(pCxt, pFunc);
if (TSDB_CODE_SUCCESS == code) {
code = translateScanPseudoColumnFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
code = translateIndefiniteRowsFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
code = translateForbidFillFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
code = translateWindowPseudoColumnFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
code = translateForbidWindowFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
code = translateForbidStreamFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
code = translateForbidGroupByFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == code) {
setFuncClassification(pCxt->pCurrStmt, pFunc);
}
return code;
}
static int32_t translateFunctionImpl(STranslateContext* pCxt, SFunctionNode** pFunc) {
if (fmIsSystemInfoFunc((*pFunc)->funcId)) {
return rewriteSystemInfoFunc(pCxt, (SNode**)pFunc);
}
return translateNoramlFunction(pCxt, *pFunc);
}
static EDealRes translateFunction(STranslateContext* pCxt, SFunctionNode** pFunc) {
SNode* pParam = NULL;
FOREACH(pParam, pFunc->pParameterList) {
FOREACH(pParam, (*pFunc)->pParameterList) {
if (isMultiResFunc(pParam)) {
return generateDealNodeErrMsg(pCxt, TSDB_CODE_PAR_WRONG_VALUE_TYPE, ((SExprNode*)pParam)->aliasName);
}
}
pCxt->errCode = getFuncInfo(pCxt, pFunc);
pCxt->errCode = getFuncInfo(pCxt, *pFunc);
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateAggFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateScanPseudoColumnFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateIndefiniteRowsFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateForbidFillFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateWindowPseudoColumnFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateForbidWindowFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateForbidStreamFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
pCxt->errCode = translateForbidGroupByFunc(pCxt, pFunc);
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
setFuncClassification(pCxt->pCurrSelectStmt, pFunc);
pCxt->errCode = translateFunctionImpl(pCxt, pFunc);
}
return TSDB_CODE_SUCCESS == pCxt->errCode ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
}
@ -1285,7 +1411,7 @@ static EDealRes doTranslateExpr(SNode** pNode, void* pContext) {
case QUERY_NODE_OPERATOR:
return translateOperator(pCxt, (SOperatorNode**)pNode);
case QUERY_NODE_FUNCTION:
return translateFunction(pCxt, (SFunctionNode*)*pNode);
return translateFunction(pCxt, (SFunctionNode**)pNode);
case QUERY_NODE_LOGIC_CONDITION:
return translateLogicCond(pCxt, (SLogicConditionNode*)*pNode);
case QUERY_NODE_TEMP_TABLE:
@ -1308,9 +1434,9 @@ static int32_t translateExprList(STranslateContext* pCxt, SNodeList* pList) {
static SNodeList* getGroupByList(STranslateContext* pCxt) {
if (isDistinctOrderBy(pCxt)) {
return pCxt->pCurrSelectStmt->pProjectionList;
return ((SSelectStmt*)pCxt->pCurrStmt)->pProjectionList;
}
return pCxt->pCurrSelectStmt->pGroupByList;
return ((SSelectStmt*)pCxt->pCurrStmt)->pGroupByList;
}
static SNode* getGroupByNode(SNode* pNode) {
@ -1348,7 +1474,7 @@ static EDealRes rewriteColToSelectValFunc(STranslateContext* pCxt, SNode** pNode
}
if (TSDB_CODE_SUCCESS == pCxt->errCode) {
*pNode = (SNode*)pFunc;
pCxt->pCurrSelectStmt->hasSelectValFunc = true;
((SSelectStmt*)pCxt->pCurrStmt)->hasSelectValFunc = true;
} else {
nodesDestroyNode((SNode*)pFunc);
}
@ -1378,7 +1504,7 @@ static EDealRes doCheckExprForGroupBy(SNode** pNode, void* pContext) {
}
}
SNode* pPartKey = NULL;
FOREACH(pPartKey, pCxt->pTranslateCxt->pCurrSelectStmt->pPartitionByList) {
FOREACH(pPartKey, ((SSelectStmt*)pCxt->pTranslateCxt->pCurrStmt)->pPartitionByList) {
if (nodesEqualNode(pPartKey, *pNode)) {
return DEAL_RES_IGNORE_CHILD;
}
@ -1463,7 +1589,7 @@ static EDealRes doCheckAggColCoexist(SNode* pNode, void* pContext) {
return DEAL_RES_IGNORE_CHILD;
}
SNode* pPartKey = NULL;
FOREACH(pPartKey, pCxt->pTranslateCxt->pCurrSelectStmt->pPartitionByList) {
FOREACH(pPartKey, ((SSelectStmt*)pCxt->pTranslateCxt->pCurrStmt)->pPartitionByList) {
if (nodesEqualNode(pPartKey, pNode)) {
return DEAL_RES_IGNORE_CHILD;
}
@ -1627,7 +1753,8 @@ static uint8_t getStmtPrecision(SNode* pStmt) {
static bool stmtIsSingleTable(SNode* pStmt) {
if (QUERY_NODE_SELECT_STMT == nodeType(pStmt)) {
return ((STableNode*)((SSelectStmt*)pStmt)->pFromTable)->singleTable;
SSelectStmt* pSelect = (SSelectStmt*)pStmt;
return NULL == pSelect->pFromTable || ((STableNode*)pSelect->pFromTable)->singleTable;
}
return false;
}
@ -1655,8 +1782,8 @@ static int32_t setTableIndex(STranslateContext* pCxt, SName* pName, SRealTableNo
if (pCxt->createStream || QUERY_SMA_OPTIMIZE_DISABLE == tsQuerySmaOptimize) {
return TSDB_CODE_SUCCESS;
}
if (NULL != pCxt->pCurrSelectStmt && NULL != pCxt->pCurrSelectStmt->pWindow &&
QUERY_NODE_INTERVAL_WINDOW == nodeType(pCxt->pCurrSelectStmt->pWindow)) {
if (isSelectStmt(pCxt->pCurrStmt) && NULL != ((SSelectStmt*)pCxt->pCurrStmt)->pWindow &&
QUERY_NODE_INTERVAL_WINDOW == nodeType(((SSelectStmt*)pCxt->pCurrStmt)->pWindow)) {
return getTableIndex(pCxt, pName, &pRealTable->pSmaIndexes);
}
return TSDB_CODE_SUCCESS;
@ -2369,7 +2496,7 @@ static EDealRes rewriteSeletcValueFunc(STranslateContext* pCxt, SNode** pNode) {
nodesDestroyNode(*pNode);
*pNode = (SNode*)pFirst;
pCxt->errCode = fmGetFuncInfo(pFirst, pCxt->msgBuf.buf, pCxt->msgBuf.len);
pCxt->pCurrSelectStmt->hasAggFuncs = true;
((SSelectStmt*)pCxt->pCurrStmt)->hasAggFuncs = true;
return TSDB_CODE_SUCCESS == pCxt->errCode ? DEAL_RES_IGNORE_CHILD : DEAL_RES_ERROR;
}
@ -2408,13 +2535,13 @@ static int32_t replaceOrderByAlias(STranslateContext* pCxt, SNodeList* pProjecti
}
static int32_t translateSelectWithoutFrom(STranslateContext* pCxt, SSelectStmt* pSelect) {
pCxt->pCurrSelectStmt = pSelect;
pCxt->pCurrStmt = (SNode*)pSelect;
pCxt->currClause = SQL_CLAUSE_SELECT;
return translateExprList(pCxt, pSelect->pProjectionList);
}
static int32_t translateSelectFrom(STranslateContext* pCxt, SSelectStmt* pSelect) {
pCxt->pCurrSelectStmt = pSelect;
pCxt->pCurrStmt = (SNode*)pSelect;
int32_t code = translateFrom(pCxt, pSelect->pFromTable);
if (TSDB_CODE_SUCCESS == code) {
pSelect->precision = ((STableNode*)pSelect->pFromTable)->precision;
@ -2538,8 +2665,7 @@ static int32_t translateSetOperOrderBy(STranslateContext* pCxt, SSetOperator* pS
if (TSDB_CODE_SUCCESS == code) {
if (other) {
pCxt->currClause = SQL_CLAUSE_ORDER_BY;
pCxt->pCurrSelectStmt = NULL;
pCxt->pCurrSetOperator = pSetOperator;
pCxt->pCurrStmt = (SNode*)pSetOperator;
code = translateExprList(pCxt, pSetOperator->pOrderByList);
}
}
@ -4420,11 +4546,11 @@ static int32_t translateQuery(STranslateContext* pCxt, SNode* pNode) {
static int32_t translateSubquery(STranslateContext* pCxt, SNode* pNode) {
++(pCxt->currLevel);
ESqlClause currClause = pCxt->currClause;
SSelectStmt* pCurrStmt = pCxt->pCurrSelectStmt;
SNode* pCurrStmt = pCxt->pCurrStmt;
int32_t code = translateQuery(pCxt, pNode);
--(pCxt->currLevel);
pCxt->currClause = currClause;
pCxt->pCurrSelectStmt = pCurrStmt;
pCxt->pCurrStmt = pCurrStmt;
return code;
}
@ -5876,6 +6002,11 @@ static int32_t setRefreshMate(STranslateContext* pCxt, SQuery* pQuery) {
static int32_t setQuery(STranslateContext* pCxt, SQuery* pQuery) {
switch (nodeType(pQuery->pRoot)) {
case QUERY_NODE_SELECT_STMT:
if (NULL == ((SSelectStmt*)pQuery->pRoot)->pFromTable) {
pQuery->execMode = QUERY_EXEC_MODE_LOCAL;
pQuery->haveResultSet = true;
break;
}
case QUERY_NODE_SET_OPERATOR:
case QUERY_NODE_EXPLAIN_STMT:
pQuery->execMode = QUERY_EXEC_MODE_SCHEDULE;

4332
source/libs/parser/src/sql.c
View File

File diff suppressed because it is too large Load Diff

12
source/libs/parser/test/parSelectTest.cpp
View File

@ -423,6 +423,18 @@ TEST_F(ParserSelectTest, withoutFrom) {
useDb("root", "test");
run("SELECT 1");
run("SELECT DATABASE()");
run("SELECT CLIENT_VERSION()");
run("SELECT SERVER_VERSION()");
run("SELECT SERVER_STATUS()");
run("SELECT CURRENT_USER()");
run("SELECT USER()");
}
} // namespace ParserTest

1
source/libs/parser/test/parTestUtil.cpp
View File

@ -203,6 +203,7 @@ class ParserTestBaseImpl {
pCxt->pMsg = stmtEnv_.msgBuf_.data();
pCxt->msgLen = stmtEnv_.msgBuf_.max_size();
pCxt->async = async;
pCxt->svrVer = "3.0.0.0";
}
void doParse(SParseContext* pCxt, SQuery** pQuery) {

14
source/libs/planner/src/planOptimizer.c
View File

@ -276,7 +276,8 @@ static int32_t pushDownCondOptAppendCond(SNode** pCond, SNode** pAdditionalCond)
}
int32_t code = TSDB_CODE_SUCCESS;
if (QUERY_NODE_LOGIC_CONDITION == nodeType(*pCond)) {
if (QUERY_NODE_LOGIC_CONDITION == nodeType(*pCond) &&
LOGIC_COND_TYPE_AND == ((SLogicConditionNode*)*pCond)->condType) {
code = nodesListAppend(((SLogicConditionNode*)*pCond)->pParameterList, *pAdditionalCond);
if (TSDB_CODE_SUCCESS == code) {
*pAdditionalCond = NULL;
@ -1083,6 +1084,11 @@ static int32_t partTagsOptRebuildTbanme(SNodeList* pPartKeys) {
return code;
}
// todo refact: just to mask compilation warnings
static void partTagsSetAlias(char* pAlias, int32_t len, const char* pTableAlias, const char* pColName) {
snprintf(pAlias, len, "%s.%s", pTableAlias, pColName);
}
static SNode* partTagsCreateWrapperFunc(const char* pFuncName, SNode* pNode) {
SFunctionNode* pFunc = (SFunctionNode*)nodesMakeNode(QUERY_NODE_FUNCTION);
if (NULL == pFunc) {
@ -1092,7 +1098,7 @@ static SNode* partTagsCreateWrapperFunc(const char* pFuncName, SNode* pNode) {
strcpy(pFunc->functionName, pFuncName);
if (QUERY_NODE_COLUMN == nodeType(pNode)) {
SColumnNode* pCol = (SColumnNode*)pNode;
sprintf(pFunc->node.aliasName, "%s.%s", pCol->tableAlias, pCol->colName);
partTagsSetAlias(pFunc->node.aliasName, sizeof(pFunc->node.aliasName), pCol->tableAlias, pCol->colName);
} else {
strcpy(pFunc->node.aliasName, ((SExprNode*)pNode)->aliasName);
}
@ -1464,9 +1470,9 @@ static SNode* rewriteUniqueOptCreateFirstFunc(SFunctionNode* pSelectValue, SNode
strcpy(pFunc->functionName, "first");
if (NULL != pSelectValue) {
sprintf(pFunc->node.aliasName, "%s", pSelectValue->node.aliasName);
strcpy(pFunc->node.aliasName, pSelectValue->node.aliasName);
} else {
sprintf(pFunc->node.aliasName, "%s.%p", pFunc->functionName, pFunc);
snprintf(pFunc->node.aliasName, sizeof(pFunc->node.aliasName), "%s.%p", pFunc->functionName, pFunc);
}
int32_t code = nodesListMakeStrictAppend(&pFunc->pParameterList, nodesCloneNode(pCol));
if (TSDB_CODE_SUCCESS == code) {

18
source/libs/planner/src/planner.c
View File

@ -85,11 +85,23 @@ int32_t qSetSubplanExecutionNode(SSubplan* subplan, int32_t groupId, SDownstream
return setSubplanExecutionNode(subplan->pNode, groupId, pSource);
}
int32_t qClearSubplanExecutionNode(SSubplan* pSubplan, int32_t groupId) {
// todo
return TSDB_CODE_FAILED;
static void clearSubplanExecutionNode(SPhysiNode* pNode) {
if (QUERY_NODE_PHYSICAL_PLAN_EXCHANGE == nodeType(pNode)) {
SExchangePhysiNode* pExchange = (SExchangePhysiNode*)pNode;
NODES_DESTORY_LIST(pExchange->pSrcEndPoints);
} else if (QUERY_NODE_PHYSICAL_PLAN_MERGE == nodeType(pNode)) {
SMergePhysiNode* pMerge = (SMergePhysiNode*)pNode;
pMerge->numOfChannels = LIST_LENGTH(pMerge->node.pChildren);
SNode* pChild = NULL;
FOREACH(pChild, pMerge->node.pChildren) { NODES_DESTORY_LIST(((SExchangePhysiNode*)pChild)->pSrcEndPoints); }
}
SNode* pChild = NULL;
FOREACH(pChild, pNode->pChildren) { clearSubplanExecutionNode((SPhysiNode*)pChild); }
}
void qClearSubplanExecutionNode(SSubplan* pSubplan) { clearSubplanExecutionNode(pSubplan->pNode); }
int32_t qSubPlanToString(const SSubplan* pSubplan, char** pStr, int32_t* pLen) {
if (SUBPLAN_TYPE_MODIFY == pSubplan->subplanType && NULL == pSubplan->pNode) {
SDataInserterNode* insert = (SDataInserterNode*)pSubplan->pDataSink;

1
source/libs/planner/test/planTestUtil.cpp
View File

@ -310,6 +310,7 @@ class PlannerTestBaseImpl {
cxt.sqlLen = stmtEnv_.sql_.length();
cxt.pMsg = stmtEnv_.msgBuf_.data();
cxt.msgLen = stmtEnv_.msgBuf_.max_size();
cxt.svrVer = "3.0.0.0";
DO_WITH_THROW(qParseSql, &cxt, pQuery);
if (prepare) {