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[coral-hive] Add support for Hive logged_in_user() function #418

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[coral-hive] Add support for Hive logged_in_user() function #418

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1 change: 1 addition & 0 deletions .../src/main/java/com/linkedin/coral/hive/hive2rel/functions/StaticHiveFunctionRegistry.java
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Original file line number Diff line number Diff line change
Expand Up @@ -674,6 +674,7 @@ public boolean isOptional(int i) {

// Context functions
addFunctionEntry("current_user", CURRENT_USER);
createAddUserDefinedFunction("logged_in_user", FunctionReturnTypes.STRING, NILADIC);
}

/**
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10 changes: 9 additions & 1 deletion coral-hive/src/test/java/com/linkedin/coral/hive/hive2rel/HiveToRelConverterTest.java
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/**
* Copyright 2017-2022 LinkedIn Corporation. All rights reserved.
* Copyright 2017-2023 LinkedIn Corporation. All rights reserved.
* Licensed under the BSD-2 Clause license.
* See LICENSE in the project root for license information.
*/
Expand Down Expand Up @@ -633,6 +633,14 @@ public void testNameSakeColumnNamesShouldGetUniqueIdentifiers() {
assertEquals(generated, expected);
}

@Test
public void testLoggedInUser() {
final String sql = "SELECT logged_in_user() as liu";
String generated = relToString(sql);
final String expected = "LogicalProject(liu=[logged_in_user()])\n LogicalValues(tuples=[[{ 0 }]])\n";
assertEquals(generated, expected);
}

private String relToString(String sql) {
return RelOptUtil.toString(converter.convertSql(sql));
}
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