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[TD-225] update the field length for binary/nchar column type

This commit is contained in:
Haojun Liao 2020-11-24 10:47:54 +08:00
parent 30e18f31b7
commit d9e497725e
1 changed files with 10 additions and 1 deletions
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11
src/client/src/tscSql.c
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@ -420,7 +420,16 @@ TAOS_FIELD *taos_fetch_fields(TAOS_RES *res) {
for(int32_t i = 0; i < pFieldInfo->numOfOutput; ++i) {
SInternalField* pField = tscFieldInfoGetInternalField(pFieldInfo, i);
if (pField->visible) {
f[j++] = pField->field;
f[j] = pField->field;
// revise the length for binary and nchar fields
if (f[j].type == TSDB_DATA_TYPE_BINARY) {
f[j].bytes -= VARSTR_HEADER_SIZE;
} else if (f[j].type == TSDB_DATA_TYPE_NCHAR) {
f[j].bytes = (f[j].bytes - VARSTR_HEADER_SIZE)/TSDB_NCHAR_SIZE;
}
j += 1;
}
}