[fix](nereids)move ReplaceVariableByLiteral rule to analyze phase #33997
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| new NormalizeRepeat() | ||
| ), | ||
| bottomUp(new AdjustAggregateNullableForEmptySet()), | ||
| topDown(new VariableToLiteral()), |
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add comment to explain why must replace here
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consider sql with user defined var @t_zone
@t_zone must be replaced as 'GMT' before EliminateGroupByConstant and NormalizeAggregate rule. So this pr move ReplaceVariableByLiteral rule from rewrite phase to analyze phase and put it before the two rules to make it work.
Issue Number: close #xxx
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