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matthewcbrown avatar matthewcbrown commented on May 7, 2024

You've got the right function call, but you need to explicitly enable create and replace statements in LanguageOptions (and whatever else you want to support).

You can see an example of this in AnalyzerTest.testExtractTableNamesFromStatementWithAnalyzerOptions:
`public void testExtractTableNamesFromStatementWithAnalyzerOptions() {
AnalyzerOptions analyzerOptions = new AnalyzerOptions();
analyzerOptions
.getLanguageOptions()
.setSupportedStatementKinds(
ImmutableSet.of(
ResolvedNodeKind.RESOLVED_INSERT_STMT,
ResolvedNodeKind.RESOLVED_QUERY_STMT));

List<List<String>> tableNames =
    Analyzer.extractTableNamesFromStatement(
        "insert into baz select count(1) from foo.bar", analyzerOptions);

assertThat(tableNames).containsExactly(Arrays.asList("baz"), Arrays.asList("foo", "bar"));

}`

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cthrysoe avatar cthrysoe commented on May 7, 2024

Hi @matthewcbrown thanks for the reply.

I have now added the RESOLVED_CREATE_TABLE_AS_SELECT_STMT to the list of supported statements.

AnalyzerOptions analyzerOptions = new AnalyzerOptions();
        analyzerOptions
                .getLanguageOptions()
                .setSupportedStatementKinds(
                        ImmutableSet.of(
                                ZetaSQLResolvedNodeKind.ResolvedNodeKind.RESOLVED_CREATE_TABLE_AS_SELECT_STMT));
        String sql = "create table project2.dataset2.table2 as SELECT column1 from project1.dataset1.table1";
        List<List<String>> tables = Analyzer.extractTableNamesFromStatement(sql, analyzerOptions);

When running the above, I still only get the output [[project1, dataset1, table1]] and not project2.dataset2.table2, am I missing something? Even if this would work, I am trying to extract the created table name only, so I am trying to retrieve project2.dataset2.table2, would this be possible somehow?
Thanks

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matthewcbrown avatar matthewcbrown commented on May 7, 2024

ahh, you are right. Looking at the code, this doesn't currently seem possible. I'll ask around to see if anyone can think of a workaround.

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sridhar562345 avatar sridhar562345 commented on May 7, 2024

@cthrysoe

Can you provide the steps to extract tables from statements? I am facing issues while setting up and running that file.

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