Merge pull request #7226 from taosdata/hotfix/TD-5868
[TD-5868]block string column name
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commit
e233ab6265
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@ -4258,6 +4258,10 @@ static bool isValidExpr(tSqlExpr* pLeft, tSqlExpr* pRight, int32_t optr) {
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return false;
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}
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if (pLeft->tokenId >= TK_BOOL && pLeft->tokenId <= TK_BINARY && (optr == TK_NOTNULL || optr == TK_ISNULL)) {
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return false;
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}
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return true;
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}
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