ibzib commented on a change in pull request #14263:
URL: https://github.com/apache/beam/pull/14263#discussion_r604343668
##########
File path:
sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/BeamZetaSqlCatalog.java
##########
@@ -276,6 +285,49 @@ private void addWindowTvfs() {
null));
}
+ private void addUdfsFromSchema() {
+ for (String functionName : calciteSchema.getFunctionNames()) {
+
Collection<org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.schema.Function>
+ functions = calciteSchema.getFunctions(functionName);
+ if (functions.size() != 1) {
+ throw new IllegalArgumentException(
+ String.format(
+ "Expected exactly 1 definition for function '%s', but found
%d.",
Review comment:
It's a Beam ZetaSQL limitation. I filed a JIRA for it: BEAM-12073
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