Schema Module

Table of Contents

• Introduction to the Schema Module
• Schema Module Release History
  • Schema Module v1.4
  • Schema Module v1.3.1
  • Schema Module v1.3
  • Schema Module v1.2
  • Schema Module v1.1.1
  • Schema Module v1.1
  • Schema Module v1.0

Introduction to the Schema Module

The Schema module provides a high level database-independent API for working with database schemas; it uses the SqlUtil module to provide the middle and low-level schema management logic from a database-independent representation of a database schema.

To use this module, use "%requires Schema" in your code.

All the public symbols in the module are defined in the Schema namespace.

Classes provided by this module:

• AbstractSchema: base class for schema representation and management
• AbstractVersionedSchema: base class for versioned schema representation and management where the schema contains its current version

Schema Module Release History

Schema Module v1.4

• allow schema operations to be executed with no output (verbose < 0) (issue 3996)

Schema Module v1.3.1

• fixed a bug where too little information was passed to post schema alignment code (issue 3640)

Schema Module v1.3

• improved logging output when performing schema alignments (issue 3114)
• fixed AbstractSchema::checkExistence() (issue 3266)

Schema Module v1.2

• added the following public functions: (issue 1851)
  • Schema::c_blob()
  • Schema::c_clob()
• updated for complex types

Schema Module v1.1.1

• applied the force option (i.e. cascade) when aligning schemas (issue 1314)

Schema Module v1.1

• added the following public functions:
  • Schema::c_char()
  • Schema::c_date()
  • Schema::c_int()
  • Schema::c_number()
  • Schema::c_timestamp()
  • Schema::c_varchar()
• added the following public constants:
  • Schema::C_NULL
  • Schema::C_NOT_NULL
• bug fixes:
  • fixed AbstractSchema::combineOptions() to accept NOTHING as well as a valid option hash
  • fixed a bug with "insert-only reference data" with the verbose option; the upsert strategy was changed to UpsertSelectFirst which means that insert-only reference data could also be updated
  • fixed a bug where it was not possible to provide Database options when creating schemas (bug 501)

Schema Module v1.0

• initial release