shameersss1 commented on a change in pull request #1105:
URL: https://github.com/apache/hive/pull/1105#discussion_r452133627
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File path: ql/src/java/org/apache/hadoop/hive/ql/ddl/misc/msck/MsckAnalyzer.java
##########
@@ -63,13 +67,24 @@ public void analyzeInternal(ASTNode root) throws
SemanticException {
}
Table table = getTable(tableName);
- List<Map<String, String>> specs = getPartitionSpecs(table, root);
+ Map<Integer, List<ExprNodeGenericFuncDesc>> partitionSpecs =
getFullPartitionSpecs(root, table, conf, false);
+ byte[] filterExp = null;
+ if (partitionSpecs != null & !partitionSpecs.isEmpty()) {
+ // explicitly set expression proxy class to
PartitionExpressionForMetastore since we intend to use the
+ // filterPartitionsByExpr of PartitionExpressionForMetastore for
partition pruning down the line.
+ conf.set(MetastoreConf.ConfVars.EXPRESSION_PROXY_CLASS.getVarname(),
+ PartitionExpressionForMetastore.class.getCanonicalName());
+ // fetch the first value of partitionSpecs map since it will always have
one key, value pair
+ filterExp = SerializationUtilities.serializeExpressionToKryo(
Review comment:
PartitionPruner and msc.listPartitionsByExpr() expects serialized byte
array, Hence it is required to flatten out.
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File path: ql/src/java/org/apache/hadoop/hive/ql/parse/BaseSemanticAnalyzer.java
##########
@@ -837,6 +844,118 @@ public static void checkColumnName(String columnName)
throws SemanticException {
return colList;
}
+ /**
+ * Get the partition specs from the tree. This stores the full specification
+ * with the comparator operator into the output list.
+ *
+ * @return Map of partitions by prefix length. Most of the time prefix
length will
+ * be the same for all partition specs, so we can just OR the
expressions.
+ */
+ public static Map<Integer, List<ExprNodeGenericFuncDesc>>
getFullPartitionSpecs(
Review comment:
Fixed!
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