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From fpompermaier <...@git.apache.org>
Subject [GitHub] flink pull request: Improved JDBCInputFormat (FLINK-3750) and othe...
Date Thu, 14 Apr 2016 13:01:10 GMT
Github user fpompermaier commented on a diff in the pull request:

    --- Diff: flink-batch-connectors/flink-jdbc/src/main/java/org/apache/flink/api/java/io/jdbc/JDBCInputFormat.java
    @@ -363,14 +439,31 @@ public JDBCInputFormat finish() {
     			if (format.dbURL == null) {
     				throw new IllegalArgumentException("No database URL supplied");
    -			if (format.query == null) {
    +			if (format.queryTemplate == null) {
     				throw new IllegalArgumentException("No query supplied");
     			if (format.drivername == null) {
     				throw new IllegalArgumentException("No driver supplied");
    +			adjustQueryTemplateIfNecessary();
     			return format;
    +		/** Try to add $CONDITIONS token automatically (at least for straightforward cases)
    +		private void adjustQueryTemplateIfNecessary() {
    --- End diff --
    Indeed I only try to fix the query if it is a simple select (I add the WHERE clause).
Otherwise it fails (I agree that is very dangerous to try to guess where to put the $CONDITIONS

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