Costin Leau b67d2274ae QL: Optimize regexs without patterns as equality (#63216)
If a QL regex doesn't contain any pattern, convert it to Equals.

Close #63196

(cherry picked from commit e22a843124290aaacd0e80d7ae9b883e5ec2431e)
2020-10-05 14:21:42 +03:00
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