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[Coral-Trino] Avoid accidental translation of Trino
from_unixtime S…
…QL call
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...-hive/src/main/java/com/linkedin/coral/hive/hive2rel/functions/TimestampFromUnixtime.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /** | ||
| * Copyright 2023 LinkedIn Corporation. All rights reserved. | ||
| * Licensed under the BSD-2 Clause license. | ||
| * See LICENSE in the project root for license information. | ||
| */ | ||
| package com.linkedin.coral.hive.hive2rel.functions; | ||
|
|
||
| import org.apache.calcite.sql.SqlCallBinding; | ||
| import org.apache.calcite.sql.SqlFunctionalOperator; | ||
| import org.apache.calcite.sql.SqlKind; | ||
| import org.apache.calcite.sql.SqlNode; | ||
| import org.apache.calcite.sql.SqlOperandCountRange; | ||
| import org.apache.calcite.sql.SqlSyntax; | ||
| import org.apache.calcite.sql.type.OperandTypes; | ||
| import org.apache.calcite.sql.type.SqlOperandCountRanges; | ||
| import org.apache.calcite.sql.type.SqlTypeFamily; | ||
|
|
||
| import com.linkedin.coral.common.functions.FunctionReturnTypes; | ||
|
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| public class TimestampFromUnixtime extends SqlFunctionalOperator { | ||
| public TimestampFromUnixtime() { | ||
| super("from_unixtime", SqlKind.OTHER_FUNCTION, 100, true, FunctionReturnTypes.TIMESTAMP, null, null); | ||
| } | ||
|
|
||
| @Override | ||
| public SqlOperandCountRange getOperandCountRange() { | ||
| return SqlOperandCountRanges.between(1, 3); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean checkOperandTypes(SqlCallBinding callBinding, boolean throwOnFailure) { | ||
| final SqlNode firstOperand = callBinding.operand(0); | ||
| if (!OperandTypes.family(SqlTypeFamily.NUMERIC).checkSingleOperandType(callBinding, firstOperand, 0, | ||
| throwOnFailure)) { | ||
| return false; | ||
| } | ||
|
|
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| if (callBinding.getOperandCount() == 2) { | ||
| final SqlNode secondOperand = callBinding.operand(1); | ||
| if (!OperandTypes.family(SqlTypeFamily.STRING).checkSingleOperandType(callBinding, secondOperand, 0, | ||
| throwOnFailure)) { | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| if (callBinding.getOperandCount() == 2) { | ||
| final SqlNode secondOperand = callBinding.operand(1); | ||
| final SqlNode thirdOperand = callBinding.operand(2); | ||
| if (!OperandTypes.family(SqlTypeFamily.NUMERIC).checkSingleOperandType(callBinding, secondOperand, 0, | ||
| throwOnFailure)) { | ||
| return false; | ||
| } | ||
| if (!OperandTypes.family(SqlTypeFamily.NUMERIC).checkSingleOperandType(callBinding, thirdOperand, 0, | ||
| throwOnFailure)) { | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| // unknown function signature | ||
| return false; | ||
| } | ||
|
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| @Override | ||
| public SqlSyntax getSyntax() { | ||
| return SqlSyntax.FUNCTION; | ||
| } | ||
| } |
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