sam-an-cloudera commented on a change in pull request #968: Hive23111
URL: https://github.com/apache/hive/pull/968#discussion_r404447903
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File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/MsckPartitionExpressionProxy.java
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@@ -44,6 +53,46 @@ public String convertExprToFilter(final byte[] exprBytes,
final String defaultPa
@Override
public boolean filterPartitionsByExpr(List<FieldSchema> partColumns, byte[]
expr, String
defaultPartitionName, List<String> partitionNames) throws MetaException {
+ String partExpr = new String(expr, StandardCharsets.UTF_8);
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Partition expr: {}", expr);
+ }
+ //This is to find in partitionNames all that match expr
+ //reverse of the Msck.makePartExpr
+ Set<String> partValueSet = new HashSet<>();
+ String[] parts = partExpr.split(" AND ");
+ for ( String part : parts){
+ String[] colAndValue = part.split("=");
+ String key = FileUtils.unescapePathName(colAndValue[0]);
+ //take the value inside without the single quote marks '2018-10-30'
becomes 2018-10-31
+ String value = FileUtils.unescapePathName(colAndValue[1].substring(1,
colAndValue[1].length()-1));
+ partValueSet.add(key+"="+value);
+ }
+
+ List<String> partNamesSeq = new ArrayList<>();
+ for (String partition : partitionNames){
+ boolean isMatch = true;
+ for ( String col : partValueSet){
+ //list of partitions [year=2001/month=1, year=2002/month=2,
year=2001/month=3]
+ //Given expr: e.g. year='2001' AND month='1'. Only when all the
expressions in the expr can be found,
Review comment:
ah, I see. I will change accordingly. Thanks for catching it.
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