Java Code Examples for org.apache.calcite.sql.type.SqlTypeUtil#equalSansNullability()
The following examples show how to use
org.apache.calcite.sql.type.SqlTypeUtil#equalSansNullability() .
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Example 1
Source File: RexSimplify.java From calcite with Apache License 2.0 | 6 votes |
public RexNode simplifyPreservingType(RexNode e, RexUnknownAs unknownAs, boolean matchNullability) { final RexNode e2 = simplifyUnknownAs(e, unknownAs); if (e2.getType() == e.getType()) { return e2; } if (!matchNullability && SqlTypeUtil.equalSansNullability(rexBuilder.typeFactory, e2.getType(), e.getType())) { return e2; } final RexNode e3 = rexBuilder.makeCast(e.getType(), e2, matchNullability); if (e3.equals(e)) { return e; } return e3; }
Example 2
Source File: RexUtil.java From Bats with Apache License 2.0 | 5 votes |
/** Returns whether an expression is a cast just for the purposes of * nullability, not changing any other aspect of the type. */ public static boolean isNullabilityCast(RelDataTypeFactory typeFactory, RexNode node) { switch (node.getKind()) { case CAST: final RexCall call = (RexCall) node; final RexNode arg0 = call.getOperands().get(0); return SqlTypeUtil.equalSansNullability(typeFactory, arg0.getType(), call.getType()); } return false; }
Example 3
Source File: RexUtil.java From calcite with Apache License 2.0 | 5 votes |
/** Returns whether an expression is a cast just for the purposes of * nullability, not changing any other aspect of the type. */ public static boolean isNullabilityCast(RelDataTypeFactory typeFactory, RexNode node) { switch (node.getKind()) { case CAST: final RexCall call = (RexCall) node; final RexNode arg0 = call.getOperands().get(0); return SqlTypeUtil.equalSansNullability(typeFactory, arg0.getType(), call.getType()); } return false; }
Example 4
Source File: RexSimplify.java From Bats with Apache License 2.0 | 4 votes |
/** * Return if the new type is the same and at most narrows the nullability. */ private boolean sameTypeOrNarrowsNullability(RelDataType oldType, RelDataType newType) { return oldType.equals(newType) || (SqlTypeUtil.equalSansNullability(rexBuilder.typeFactory, oldType, newType) && oldType.isNullable()); }
Example 5
Source File: RexSimplify.java From calcite with Apache License 2.0 | 4 votes |
/** * Return if the new type is the same and at most narrows the nullability. */ private boolean sameTypeOrNarrowsNullability(RelDataType oldType, RelDataType newType) { return oldType.equals(newType) || (SqlTypeUtil.equalSansNullability(rexBuilder.typeFactory, oldType, newType) && oldType.isNullable()); }