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Merge branch '2_0_x' of github.com:liquibase/liquibase into 2_0_x
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liquibase-core/src/main/java/liquibase/sqlgenerator/core/CreateIndexGeneratorPostgres.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package liquibase.sqlgenerator.core; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.Iterator; | ||
| import java.util.List; | ||
|
|
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| import liquibase.database.Database; | ||
| import liquibase.database.core.DB2Database; | ||
| import liquibase.database.core.InformixDatabase; | ||
| import liquibase.database.core.MSSQLDatabase; | ||
| import liquibase.database.core.PostgresDatabase; | ||
| import liquibase.database.core.SybaseASADatabase; | ||
| import liquibase.database.structure.Index; | ||
| import liquibase.sql.Sql; | ||
| import liquibase.sql.UnparsedSql; | ||
| import liquibase.sqlgenerator.SqlGeneratorChain; | ||
| import liquibase.statement.core.CreateIndexStatement; | ||
| import liquibase.util.StringUtils; | ||
|
|
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| public class CreateIndexGeneratorPostgres extends CreateIndexGenerator { | ||
|
|
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| @Override | ||
| public int getPriority() { | ||
| return PRIORITY_DATABASE; | ||
| } | ||
|
|
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| @Override | ||
| public boolean supports(CreateIndexStatement statement, Database database) { | ||
| return database instanceof PostgresDatabase; | ||
| } | ||
|
|
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| public Sql[] generateSql(CreateIndexStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) { | ||
|
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| // Default filter of index creation: | ||
| // creation of all indexes with associations are switched off. | ||
| List<String> associatedWith = StringUtils.splitAndTrim(statement.getAssociatedWith(), ","); | ||
| if (associatedWith != null && (associatedWith.contains(Index.MARK_PRIMARY_KEY) || | ||
| associatedWith.contains(Index.MARK_UNIQUE_CONSTRAINT) || | ||
| associatedWith.contains(Index.MARK_FOREIGN_KEY))) { | ||
| return new Sql[0]; | ||
| } | ||
|
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| StringBuilder buffer = new StringBuilder(); | ||
|
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| buffer.append("CREATE "); | ||
| if (statement.isUnique() != null && statement.isUnique()) { | ||
| buffer.append("UNIQUE "); | ||
| } | ||
| buffer.append("INDEX "); | ||
|
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| if (statement.getIndexName() != null) { | ||
| String indexSchema = statement.getTableSchemaName(); | ||
| buffer.append(database.escapeIndexName(null, statement.getIndexName())).append(" "); | ||
| } | ||
| buffer.append("ON "); | ||
| buffer.append(database.escapeTableName(statement.getTableSchemaName(), statement.getTableName())).append("("); | ||
| Iterator<String> iterator = Arrays.asList(statement.getColumns()).iterator(); | ||
| while (iterator.hasNext()) { | ||
| String column = iterator.next(); | ||
| buffer.append(database.escapeColumnName(statement.getTableSchemaName(), statement.getTableName(), column)); | ||
| if (iterator.hasNext()) { | ||
| buffer.append(", "); | ||
| } | ||
| } | ||
| buffer.append(")"); | ||
|
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| if (StringUtils.trimToNull(statement.getTablespace()) != null && database.supportsTablespaces()) { | ||
| if (database instanceof MSSQLDatabase || database instanceof SybaseASADatabase) { | ||
| buffer.append(" ON ").append(statement.getTablespace()); | ||
| } else if (database instanceof DB2Database || database instanceof InformixDatabase) { | ||
| buffer.append(" IN ").append(statement.getTablespace()); | ||
| } else { | ||
| buffer.append(" TABLESPACE ").append(statement.getTablespace()); | ||
| } | ||
| } | ||
|
|
||
| return new Sql[]{new UnparsedSql(buffer.toString())}; | ||
| } | ||
| } |
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