org.apache.hadoop.hive.ql.parse.AnalyzeCommandUtils Maven / Gradle / Ivy
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package org.apache.hadoop.hive.ql.parse;
import java.util.HashMap;
import java.util.Map;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.exec.Utilities;
import org.apache.hadoop.hive.ql.metadata.Table;
import org.apache.hadoop.hive.ql.session.SessionState;
public class AnalyzeCommandUtils {
public static boolean isPartitionLevelStats(ASTNode tree) {
boolean isPartitioned = false;
ASTNode child = (ASTNode) tree.getChild(0);
if (child.getChildCount() > 1) {
child = (ASTNode) child.getChild(1);
if (child.getToken().getType() == HiveParser.TOK_PARTSPEC) {
isPartitioned = true;
}
}
return isPartitioned;
}
public static Table getTable(ASTNode tree, BaseSemanticAnalyzer sa) throws SemanticException {
String tableName = ColumnStatsSemanticAnalyzer.getUnescapedName((ASTNode) tree.getChild(0).getChild(0));
String currentDb = SessionState.get().getCurrentDatabase();
String [] names = Utilities.getDbTableName(currentDb, tableName);
return sa.getTable(names[0], names[1], true);
}
public static Map getPartKeyValuePairsFromAST(Table tbl, ASTNode tree,
HiveConf hiveConf) throws SemanticException {
ASTNode child = ((ASTNode) tree.getChild(0).getChild(1));
Map partSpec = new HashMap();
if (child != null) {
partSpec = DDLSemanticAnalyzer.getValidatedPartSpec(tbl, child, hiveConf, false);
} //otherwise, it is the case of analyze table T compute statistics for columns;
return partSpec;
}
}