PostgreSQL

This part describes the client programming interfaces distributed with PostgreSQL. Each of these chapters can be read independently. Note that there are many other programming interfaces for client programs that are distributed separately and contain their own documentation (Appendix H lists some of the more popular ones). Readers of this part should be familiar with using SQL commands to manipulate and query the database (see Part II) and of course with the programming language that the interface uses.

Table of Contents

34. libpq — C Library

34.1. Database Connection Control Functions

34.2. Connection Status Functions

34.3. Command Execution Functions

34.4. Asynchronous Command Processing

34.5. Pipeline Mode

34.6. Retrieving Query Results Row-by-Row

34.7. Canceling Queries in Progress

34.8. The Fast-Path Interface

34.9. Asynchronous Notification

34.10. Functions Associated with the COPY Command

34.11. Control Functions

34.12. Miscellaneous Functions

34.13. Notice Processing

34.14. Event System

34.15. Environment Variables

34.16. The Password File

34.17. The Connection Service File

34.18. LDAP Lookup of Connection Parameters

34.19. SSL Support

34.20. Behavior in Threaded Programs

34.21. Building libpq Programs

34.22. Example Programs

35. Large Objects

35.1. Introduction

35.2. Implementation Features

35.3. Client Interfaces

35.4. Server-Side Functions

35.5. Example Program

36. ECPG — Embedded SQL in C

36.1. The Concept

36.2. Managing Database Connections

36.3. Running SQL Commands

36.4. Using Host Variables

36.5. Dynamic SQL

36.6. pgtypes Library

36.7. Using Descriptor Areas

36.8. Error Handling

36.9. Preprocessor Directives

36.10. Processing Embedded SQL Programs

36.11. Library Functions

36.12. Large Objects

36.13. C++ Applications

36.14. Embedded SQL Commands

36.15. Informix Compatibility Mode

36.16. Oracle Compatibility Mode

36.17. Internals

37. The Information Schema

37.1. The Schema

37.2. Data Types

37.3. information_schema_catalog_name

37.4. administrable_role_​authorizations

37.5. applicable_roles

37.6. attributes

37.7. character_sets

37.8. check_constraint_routine_usage

37.9. check_constraints

37.10. collations

37.11. collation_character_set_​applicability

37.12. column_column_usage

37.13. column_domain_usage

37.14. column_options

37.15. column_privileges

37.16. column_udt_usage

37.17. columns

37.18. constraint_column_usage

37.19. constraint_table_usage

37.20. data_type_privileges

37.21. domain_constraints

37.22. domain_udt_usage

37.23. domains

37.24. element_types

37.25. enabled_roles

37.26. foreign_data_wrapper_options

37.27. foreign_data_wrappers

37.28. foreign_server_options

37.29. foreign_servers

37.30. foreign_table_options

37.31. foreign_tables

37.32. key_column_usage

37.33. parameters

37.34. referential_constraints

37.35. role_column_grants

37.36. role_routine_grants

37.37. role_table_grants

37.38. role_udt_grants

37.39. role_usage_grants

37.40. routine_column_usage

37.41. routine_privileges

37.42. routine_routine_usage

37.43. routine_sequence_usage

37.44. routine_table_usage

37.45. routines

37.46. schemata

37.47. sequences

37.48. sql_features

37.49. sql_implementation_info

37.50. sql_parts

37.51. sql_sizing

37.52. table_constraints

37.53. table_privileges

37.54. tables

37.55. transforms

37.56. triggered_update_columns

37.57. triggers

37.58. udt_privileges

37.59. usage_privileges

37.60. user_defined_types

37.61. user_mapping_options

37.62. user_mappings

37.63. view_column_usage

37.64. view_routine_usage

37.65. view_table_usage

37.66. views

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