builder.WriteByte(' ')
	}

	builder.WriteString("INTO ")
	if insert.Table.Name == "" {
		builder.WriteQuoted(currentTable)
	} else {
		builder.WriteQuoted(insert.Table)
	}
}

// MergeClause merge insert clause
func (insert Insert) MergeClause(clause *Clause) {
	if v, ok := clause.Expression.(Insert); ok {
		if insert.Modifier == "" {
			insert.Modifier = v.Modifier
		}
		if insert.Table.Name == "" {

		for idx, column := range returning.Columns {
			if idx > 0 {
				builder.WriteByte(',')
			}

			builder.WriteQuoted(column)
		}
	} else {
		builder.WriteByte('*')
	}
}

// MergeClause merge order by clauses
func (returning Returning) MergeClause(clause *Clause) {
	if v, ok := clause.Expression.(Returning); ok && len(returning.Columns) > 0 {
		if v.Columns != nil {

			builder.WriteQuoted(table)
		}
	} else {
		builder.WriteQuoted(currentTable)
	}

	for _, join := range from.Joins {
		builder.WriteByte(' ')
		join.Build(builder)
	}
}

// MergeClause merge from clause
func (from From) MergeClause(clause *Clause) {
	clause.Expression = from

	}
	if limit.Offset > 0 {
		if limit.Limit != nil && *limit.Limit >= 0 {
			builder.WriteByte(' ')
		}
		builder.WriteString("OFFSET ")
		builder.AddVar(builder, limit.Offset)
	}
}

// MergeClause merge order by clauses
func (limit Limit) MergeClause(clause *Clause) {
	clause.Name = ""

	if v, ok := clause.Expression.(Limit); ok {
		if (limit.Limit == nil || *limit.Limit == 0) && v.Limit != nil {
			limit.Limit = v.Limit

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with Reader and Writers for the Xpp3 XML parser, <<<ToAPiV3()>>> and <<<ToApiV4()>>> transformers, and <<<v4>>> package
     for Merger and v4 Reader and Writers for the Xpp3 XML parser,

   * A {{{../../api/maven-api-settings/settings.html}Descriptor Reference}}

   * An {{{https://maven.apache.org/xsd/settings-2.0.0.xsd}XSD}}

    // When elements compare as equal (both C's have same letter), our merge should always return C1
    // before C2, since C1 is from the first iterator.

    Iterator<TestDatum> merged =
        Iterators.mergeSorted(ImmutableList.of(left.iterator(), right.iterator()), comparator);

    ImmutableList<TestDatum> result = ImmutableList.copyOf(merged);

    assertThat(result)
        .containsExactly(

		onConflict.DoUpdates.Build(builder)
	}

	if len(onConflict.Where.Exprs) > 0 {
		builder.WriteString(" WHERE ")
		onConflict.Where.Build(builder)
		builder.WriteByte(' ')
	}
}

// MergeClause merge onConflict clauses
func (onConflict OnConflict) MergeClause(clause *Clause) {
	clause.Expression = onConflict

import org.apache.maven.toolchain.io.ToolchainsParseException;
import org.apache.maven.toolchain.io.ToolchainsReader;
import org.apache.maven.toolchain.io.ToolchainsWriter;
import org.apache.maven.toolchain.merge.MavenToolchainMerger;
import org.apache.maven.toolchain.model.PersistedToolchains;
import org.apache.maven.toolchain.model.TrackableBase;
import org.codehaus.plexus.interpolation.EnvarBasedValueSource;

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with Reader and Writers for the Xpp3 XML parser, <<<ToAPiV3()>>> and <<<ToApiV4()>>> transformers, and <<<v4>>> package
     for Merger and v4 Reader and Writers for the Xpp3 XML parser,

   * A {{{../../api/maven-api-toolchain/toolchains.html}Descriptor Reference}}

     * Maven 4 only supports 'override', 'merge', and 'remove' (default is merge), not 'append'.
     */
    private boolean fixUnsupportedCombineSelfAttributes(Document pomDocument, UpgradeContext context) {
        boolean fixed = false;
        Element root = pomDocument.root();

        // Find all elements with combine.self="append" and change to "merge"