How to use

RexPatternFieldRef

in

org.apache.calcite.rex

public static RexPatternFieldRef of(String alpha, int index, RelDataType type) {
 return new RexPatternFieldRef(alpha, index, type);
}

@Override public Object visitPatternFieldRef(RexPatternFieldRef fieldRef) {
 patternVars.add(fieldRef.getAlpha());
 return null;
}

String pv = ref.getAlpha();
SqlNode refNode = field(ref.getIndex());
final SqlIdentifier id = (SqlIdentifier) refNode;
if (id.names.size() > 1) {

e = RexPatternFieldRef.of(pv, (RexInputRef) e);

String pv = ref.getAlpha();
SqlNode refNode = field(ref.getIndex());
final SqlIdentifier id = (SqlIdentifier) refNode;
if (id.names.size() > 1) {

e = RexPatternFieldRef.of(pv, (RexInputRef) e);

e = RexPatternFieldRef.of(pv, (RexInputRef) e);

public static RexPatternFieldRef of(String alpha, int index, RelDataType type) {
 return new RexPatternFieldRef(alpha, index, type);
}

@Override public Object visitPatternFieldRef(RexPatternFieldRef fieldRef) {
 patternVars.add(fieldRef.getAlpha());
 return null;
}

/**
 * Creates a reference to a given field of the pattern.
 *
 * @param alpha the pattern name
 * @param type Type of field
 * @param i    Ordinal of field
 * @return Reference to field of pattern
 */
public RexPatternFieldRef makePatternFieldRef(String alpha, RelDataType type, int i) {
 type = SqlTypeUtil.addCharsetAndCollation(type, typeFactory);
 return new RexPatternFieldRef(alpha, i, type);
}

/**
 * Creates a reference to a given field of the pattern.
 *
 * @param alpha the pattern name
 * @param type Type of field
 * @param i    Ordinal of field
 * @return Reference to field of pattern
 */
public RexPatternFieldRef makePatternFieldRef(String alpha, RelDataType type, int i) {
 type = SqlTypeUtil.addCharsetAndCollation(type, typeFactory);
 return new RexPatternFieldRef(alpha, i, type);
}

public static RexPatternFieldRef of(String alpha, RexInputRef ref) {
 return new RexPatternFieldRef(alpha, ref.getIndex(), ref.getType());
}

public static RexPatternFieldRef of(String alpha, RexInputRef ref) {
 return new RexPatternFieldRef(alpha, ref.getIndex(), ref.getType());
}