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Item::print(): remove redundant parentheses

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by introducing new Item::precedence() method and using it
to decide whether parentheses are required
This commit is contained in:
Sergei Golubchik
2016-11-27 19:50:10 +01:00
parent 1db438c833
commit 180065ebb0
188 changed files with 2684 additions and 2553 deletions
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4
mysql-test/r/explain_json_innodb.result
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@ -31,7 +31,7 @@ EXPLAIN
"access_type": "ALL",
"rows": 1,
"filtered": 100,
"attached_condition": "((tbl_alias1.column_name_2 is not null) and (tbl_alias1.column_name_1 is not null))"
"attached_condition": "tbl_alias1.column_name_2 is not null and tbl_alias1.column_name_1 is not null"
},
"table": {
"table_name": "tbl_alias2",
@ -46,7 +46,7 @@ EXPLAIN
],
"rows": 1,
"filtered": 100,
"attached_condition": "(tbl_alias2.c = tbl_alias1.column_name_2)",
"attached_condition": "tbl_alias2.c = tbl_alias1.column_name_2",
"using_index": true
}
}