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feat(query): add _isfilled pseudocolumn to indicate data is origin 

or filled.
This commit is contained in:
Ganlin Zhao 2022-12-14 16:23:49 +08:00
parent 61cfca6eb9
commit 5da2fe9bc5
2 changed files with 21 additions and 3 deletions
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1
include/libs/function/functionMgt.h
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@ -120,6 +120,7 @@ typedef enum EFunctionType {
FUNCTION_TYPE_WEND, FUNCTION_TYPE_WEND,
FUNCTION_TYPE_WDURATION, FUNCTION_TYPE_WDURATION,
FUNCTION_TYPE_IROWTS, FUNCTION_TYPE_IROWTS,
FUNCTION_TYPE_ISFILLED,
FUNCTION_TYPE_TAGS, FUNCTION_TYPE_TAGS,
// internal function // internal function

23
source/libs/function/src/builtins.c
View File

@ -466,7 +466,7 @@ static int32_t translateStddevMerge(SFunctionNode* pFunc, char* pErrBuf, int32_t
static int32_t translateWduration(SFunctionNode* pFunc, char* pErrBuf, int32_t len) { static int32_t translateWduration(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
// pseudo column do not need to check parameters // pseudo column do not need to check parameters
pFunc->node.resType = (SDataType){.bytes = sizeof(int64_t), .type = TSDB_DATA_TYPE_BIGINT}; pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_BIGINT].bytes, .type = TSDB_DATA_TYPE_BIGINT};
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }
@ -480,14 +480,21 @@ static int32_t translateNowToday(SFunctionNode* pFunc, char* pErrBuf, int32_t le
return code; return code;
} }
pFunc->node.resType = (SDataType){.bytes = sizeof(int64_t), .type = TSDB_DATA_TYPE_TIMESTAMP}; pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }
static int32_t translateTimePseudoColumn(SFunctionNode* pFunc, char* pErrBuf, int32_t len) { static int32_t translateTimePseudoColumn(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
// pseudo column do not need to check parameters // pseudo column do not need to check parameters
pFunc->node.resType = (SDataType){.bytes = sizeof(int64_t), .type = TSDB_DATA_TYPE_TIMESTAMP}; pFunc->node.resType = (SDataType){.bytes =tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
return TSDB_CODE_SUCCESS;
}
static int32_t translateIsFilledPseudoColumn(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
// pseudo column do not need to check parameters
pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_BOOL].bytes, .type = TSDB_DATA_TYPE_BOOL};
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }
@ -3254,6 +3261,16 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
.sprocessFunc = NULL, .sprocessFunc = NULL,
.finalizeFunc = NULL .finalizeFunc = NULL
}, },
{
.name = "_isfilled",
.type = FUNCTION_TYPE_ISFILLED,
.classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_INTERP_PC_FUNC,
.translateFunc = translateIsFilledPseudoColumn,
.getEnvFunc = NULL,
.initFunc = NULL,
.sprocessFunc = NULL,
.finalizeFunc = NULL
},
{ {
.name = "_tags", .name = "_tags",
.type = FUNCTION_TYPE_TAGS, .type = FUNCTION_TYPE_TAGS,