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TD-803: if non-existing columns as NULL

This commit is contained in:
Bomin Zhang 2020-07-01 15:07:30 +08:00
parent 13f8b063e5
commit b1a4752b9f
4 changed files with 28 additions and 1 deletions
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1
src/client/src/tscSQLParser.c
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@ -5664,7 +5664,6 @@ int32_t doCheckForCreateFromStable(SSqlObj* pSql, SSqlInfo* pInfo) {
return ret;
}
//pTag->dataLen = tagVal - pTag->data;
return TSDB_CODE_SUCCESS;
}

22
src/common/src/ttypes.c
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@ -464,6 +464,28 @@ void setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems) {
}
}
static uint8_t nullBool = TSDB_DATA_BOOL_NULL;
static uint8_t nullTinyInt = TSDB_DATA_TINYINT_NULL;
static uint16_t nullSmallInt = TSDB_DATA_SMALLINT_NULL;
static uint32_t nullInt = TSDB_DATA_INT_NULL;
static uint64_t nullBigInt = TSDB_DATA_BIGINT_NULL;
static uint32_t nullFloat = TSDB_DATA_FLOAT_NULL;
static uint64_t nullDouble = TSDB_DATA_DOUBLE_NULL;
static struct {
tstr str;
int32_t pad;
} nullBinary = {.str = {.len = 1}, .pad = 0}, nullNchar = {.str = {.len = 4}, .pad = 0};
static void *nullValues[] = {
&nullBool, &nullTinyInt, &nullSmallInt, &nullInt, &nullBigInt,
&nullFloat, &nullDouble, &nullBinary, &nullBigInt, &nullNchar,
};
void *getNullValue(int32_t type) {
assert(type >= TSDB_DATA_TYPE_BOOL && type <= TSDB_DATA_TYPE_NCHAR);
return nullValues[type - 1];
}
void assignVal(char *val, const char *src, int32_t len, int32_t type) {
switch (type) {
case TSDB_DATA_TYPE_INT: {

1
src/inc/taosdef.h
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@ -165,6 +165,7 @@ bool isNull(const char *val, int32_t type);
void setVardataNull(char* val, int32_t type);
void setNull(char *val, int32_t type, int32_t bytes);
void setNullN(char *val, int32_t type, int32_t bytes, int32_t numOfElems);
void* getNullValue(int32_t type);
void assignVal(char *val, const char *src, int32_t len, int32_t type);
void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);

5
src/tsdb/src/tsdbMeta.c
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@ -604,6 +604,10 @@ static char *getTagIndexKey(const void *pData) {
STSchema *pSchema = tsdbGetTableTagSchema(pTable);
STColumn *pCol = schemaColAt(pSchema, DEFAULT_TAG_INDEX_COLUMN);
void * res = tdGetKVRowValOfCol(pTable->tagVal, pCol->colId);
if (res == NULL) {
// treat the column as NULL if we cannot find it
res = getNullValue(pCol->type);
}
return res;
}
@ -849,6 +853,7 @@ static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable) {
STable *pSTable = tsdbGetTableByUid(pMeta, TABLE_SUID(pTable));
ASSERT(pSTable != NULL);
printf("pTable = %p, pSTable = %p\n", pTable, pSTable);
pTable->pSuper = pSTable;
int32_t level = 0;