public Class PostgresDatabase

Overrides liquibase.database.AbstractJdbcDatabase.correctObjectName.

Implements liquibase.database.Database.correctObjectName.

Doc from liquibase.database.Database.correctObjectName.

Fix the object name to the format the database expects, handling changes in case, etc.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

o:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.escapeObjectName.

Implements liquibase.database.Database.escapeObjectName.

This has special case logic to handle NOT quoting column names if they are of type 'LiquibaseColumn' - columns in the DATABASECHANGELOG or DATABASECHANGELOGLOCK tables.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.generateAutoIncrementBy.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.generateAutoIncrementStartWith.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.generatePrimaryKeyName.

Implements liquibase.database.Database.generatePrimaryKeyName.

Generates PK following PostgreSQL conventions:

Overrides liquibase.database.AbstractJdbcDatabase.getAutoIncrementClause.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.getDatabaseChangeLogLockTableName.

Implements liquibase.database.Database.getDatabaseChangeLogLockTableName.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.getDatabaseChangeLogTableName.

Implements liquibase.database.Database.getDatabaseChangeLogTableName.

Annotations

@Override

Implements liquibase.database.Database.getDefaultDriver.

Doc from liquibase.database.Database.getDefaultDriver.

If this database understands the given url, return the default driver class name. Otherwise return null.

Annotations

@Override

Implements liquibase.database.Database.getDefaultPort.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.getMaxFractionalDigitsForTimestamp.

Implements liquibase.database.Database.getMaxFractionalDigitsForTimestamp.

Doc from liquibase.database.AbstractJdbcDatabase.getMaxFractionalDigitsForTimestamp.

Most relational databases support 9 fractional digits, and subclasses must overwrite this method if they support less than that.

Returns:int

the maximum number of supported fractional digits in TIMESTAMP columns

Annotations

@Override

@SuppressWarnings:squid:S109

Implements liquibase.servicelocator.PrioritizedService.getPriority.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.getSchemaAndCatalogCase.

Implements liquibase.database.Database.getSchemaAndCatalogCase.

Doc from liquibase.database.AbstractJdbcDatabase.getSchemaAndCatalogCase.

This logic is used when db support catalogs

Returns:CatalogAndSchema.CatalogAndSchemaCase

UPPER_CASE by default

Annotations

@Override

Implements liquibase.database.Database.getShortName.

Doc from liquibase.database.Database.getShortName.

Returns an all-lower-case short name of the product. Used for end-user selecting of database type such as the DBMS precondition.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.getSystemViews.

Doc from liquibase.database.AbstractJdbcDatabase.getSystemViews.

Returns system (undroppable) views.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

Implements liquibase.database.Database.isCorrectDatabaseImplementation.

Doc from liquibase.database.Database.isCorrectDatabaseImplementation.

Is this AbstractDatabase subclass the correct one to use for the given connection.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.isReservedWord.

Implements liquibase.database.Database.isReservedWord.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.isSystemObject.

Implements liquibase.database.Database.isSystemObject.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.rollback.

Implements liquibase.database.Database.rollback.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.setConnection.

Implements liquibase.database.Database.setConnection.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.setDefaultCatalogName.

Implements liquibase.database.Database.setDefaultCatalogName.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.supportsCatalogInObjectName.

Implements liquibase.database.Database.supportsCatalogInObjectName.

Annotations

@Override

Overrides default liquibase.database.Database.supportsCreateIfNotExists.

Doc from liquibase.database.Database.supportsCreateIfNotExists.

Does the database support the "if not exits" syntax?

Parameters

type:Class<? extends DatabaseObject>

the DatabaseObject type to be checked.

Returns:boolean

true if the "if not exists" syntax is supported, false otherwise.

Annotations

@Override

Implements liquibase.database.Database.supportsInitiallyDeferrableColumns.

Doc from liquibase.database.Database.supportsInitiallyDeferrableColumns.

Returns whether this database support initially deferrable columns.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.supportsSequences.

Implements liquibase.database.Database.supportsSequences.

Doc from liquibase.database.AbstractJdbcDatabase.supportsSequences.

Does the database type support sequence.

Annotations

@Override

Implements liquibase.database.Database.supportsTablespaces.

Annotations

@Override

Overrides liquibase.database.AbstractJdbcDatabase.unescapeDataTypeName.

Implements liquibase.database.Database.unescapeDataTypeName.

Annotations

@Override

Should the database use "serial" datatypes vs. "generated by default as identity"