support collate field option in compare predicate sql from datagrip

[Astralidea]

Proposed changes

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Fix #4331 mentioned SQL:
"""
select
collation_name,
character_set_name,
is_default collate utf8_general_ci = 'Yes' as is_default
from information_schema.collations
"""

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Further comments

代码实现了基本的功能，可以让DataGrip读出来有哪些表和表结构了，但是感觉写得不优雅。
试了很多方式都有冲突，也可以看看怎么改比较好一些。

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[morningman]

Looks like the opt_collate should be part of expr?
Not only in select_list_item

[Astralidea]

Looks like the opt_collate should be part of expr?
Not only in select_list_item

这个我尝试放expr里过，但是会有大量的冲突，不知道应该怎么写比较好？

[morningman]

diff --git a/fe/fe-core/src/main/cup/sql_parser.cup b/fe/fe-core/src/main/cup/sql_parser.cup
index 4e4e028e4..34f6dbff4 100644
--- a/fe/fe-core/src/main/cup/sql_parser.cup
+++ b/fe/fe-core/src/main/cup/sql_parser.cup
@@ -502,6 +502,7 @@ precedence left KW_INTERVAL;
 precedence left KW_OVER;
 precedence left KW_PARTITION;
 precedence left KW_PARTITIONS;
+precedence left KW_COLLATE;
 precedence right KW_TEMPORARY;
 precedence right LBRACKET;

@@ -3258,7 +3259,7 @@ select_sublist ::=
     ;

 select_list_item ::=
-    expr:expr opt_collate:collate select_alias:alias
+    expr:expr select_alias:alias
     {:
         RESULT = new SelectListItem(expr, alias);
     :}
@@ -3849,7 +3850,7 @@ sign_chain_expr ::=
   ;

 expr ::=
-  non_pred_expr:e
+  non_pred_expr:e opt_collate:collate
   {: RESULT = e; :}
   | predicate:p
   {: RESULT = p; :}

you can try above diff. I think it works

[Astralidea]

you can try above diff. I think it works

十分感谢，好使。不过不好意思，我操作失误把原来的仓库给搞没了，我又提了个PR，在那上面看吧。
#4365