asolimando commented on a change in pull request #2685:
URL: https://github.com/apache/hive/pull/2685#discussion_r726828332
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File path: ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java
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@@ -1612,6 +1613,10 @@ private RowResolver genRowResolver(Operator op, QB qb) {
private final StatsSource statsSource;
private RelNode dummyTableScan;
+ // these variables are to ensure that they get instantiated only once
+ Map<List<String>, JdbcConvention> jcMap = new HashMap<>();
Review comment:
Nit: nowadays with autocompletion I think we can afford longer and
self-explanatory variable names like `jdbcConventionMap`, WDYT?
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