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September 24, 2026:
PostgreSQL 19 Beta 4 Released!
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PostgreSQL 7.3
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PostgreSQL 7.3.21 Documentation
Prev
Index
Symbols
$libdir,
Dynamic Loading
A
aggregate,
Aggregate Functions
aggregate functions,
Aggregate Expressions
extending,
Extending SQL: Aggregates
alias
see label
for table name in query,
Joins Between Tables
all,
Subquery Expressions
and
operator,
Logical Operators
any,
Pseudo-Types
,
Subquery Expressions
anyarray,
Pseudo-Types
arrays,
Arrays
,
Extending SQL: Types
constants,
Array constants
Australian time zones,
General Operation
auto-increment
see serial
autocommit,
General Operation
average,
Aggregate Functions
function,
Aggregate Functions
B
B-tree
see indexes
backslash_quote configuration parameter,
General Operation
backup,
Backup and Restore
between,
Comparison Operators
bigint,
Numeric Types
bigserial,
The Serial Types
binary strings
concatenation,
Binary String Functions and Operators
length,
Binary String Functions and Operators
bison,
Requirements
bit strings
constants,
Bit-String Constants
data type,
Bit String Types
BLOB
see large object
Boolean
data type,
Boolean Type
operators
see operators, logical
box (data type),
Box
BSD/OS,
Shared Memory and Semaphores
,
Compiling and Linking Dynamically-Loaded Functions
bytea
in libpq,
Escaping Binary Strings for Inclusion in SQL Commands
C
case,
Conditional Expressions
case sensitivity
SQL commands,
Identifiers and Key Words
catalogs,
About the PostgreSQL System Catalogs
character set encoding,
General Operation
character strings
concatenation,
String Functions and Operators
constants,
String Constants
data types,
Character Types
length,
String Functions and Operators
cid,
Object Identifier Types
cidr,
cidr
circle,
Circle
client authentication,
Client Authentication
cluster,
Concepts
column,
Concepts
columns
system columns,
System Columns
col_description,
Miscellaneous Functions
comments
in SQL,
Comments
comparison
operators,
Comparison Operators
concurrency,
Concurrency Control
conditionals,
Conditional Expressions
configuration
server,
Run-time Configuration
configure,
Installation Procedure
connection loss,
pg_on_connection_loss
constants,
Constants
COPY,
Populating a Table With Rows
with libpq,
Functions Associated with the COPY Command
count,
Aggregate Functions
CREATE TABLE,
Creating a New Table
createdb,
Creating a Database
crypt,
Password authentication
cstring,
Pseudo-Types
currval,
Sequence-Manipulation Functions
D
data area
see database cluster
data types,
Data Types
,
The PostgreSQL Type System
constants,
Constants of Other Types
extending,
Extending SQL: Types
numeric,
Numeric Types
type casts,
Type Casts
database,
Managing Databases
creating,
Creating a Database
database cluster,
Creating a Database Cluster
date
constants,
Special values
current,
Current Date/Time
data type,
Dates
output format,
Date/Time Output
see also Formatting
date style,
General Operation
deadlock
timeout,
General Operation
decimal
see numeric
DELETE,
Deletions
Digital UNIX
see Tru64 UNIX
dirty read,
Transaction Isolation
disk space,
Recovering disk space
disk usage,
Determining Disk Usage
DISTINCT,
Querying a Table
,
DISTINCT
double precision,
Numeric Types
DROP TABLE,
Creating a New Table
duplicate,
Querying a Table
dynamic loading,
General Operation
dynamic_library_path,
General Operation
,
Dynamic Loading
E
elog,
Database Access from PL/Tcl
PL/Perl,
Database Access from PL/Perl
embedded SQL
in C,
ECPG - Embedded SQL in C
environment variables,
Environment Variables
error message,
Database Connection Functions
escaping strings,
Escaping Strings for Inclusion in SQL Commands
except,
Combining Queries
exists,
Subquery Expressions
extending SQL,
Extending SQL: An Overview
types,
The PostgreSQL Type System
F
false,
Boolean Type
FETCH
embedded SQL,
Porting From Other RDBMS Packages
files,
Files
flex,
Requirements
float4
see real
float8
see double precision
floating point,
Numeric Types
foreign key,
Foreign Keys
formatting,
Data Type Formatting Functions
FreeBSD,
Starting the Database Server
,
Shared Memory and Semaphores
,
Compiling and Linking Dynamically-Loaded Functions
fsync,
General Operation
function,
Extending SQL: Functions
,
Table Functions
internal,
Internal Functions
SQL,
Query Language (SQL) Functions
functions,
Functions and Operators
G
genetic query optimization,
Planner and Optimizer Tuning
GEQO
see genetic query optimization
get_bit,
Binary String Functions and Operators
get_byte,
Binary String Functions and Operators
group,
The GROUP BY and HAVING Clauses
GROUP BY,
Aggregate Functions
H
hash
see indexes
has_database_privilege,
Miscellaneous Functions
has_function_privilege,
Miscellaneous Functions
has_language_privilege,
Miscellaneous Functions
has_schema_privilege,
Miscellaneous Functions
has_table_privilege,
Miscellaneous Functions
HAVING,
Aggregate Functions
hierarchical database,
Concepts
HP-UX,
Shared Memory and Semaphores
,
Compiling and Linking Dynamically-Loaded Functions
I
ident,
Ident-based authentication
identifiers,
Identifiers and Key Words
in,
Subquery Expressions
index scan,
Planner and Optimizer Tuning
indexes,
Indexes
B-tree,
Index Types
hash,
Index Types
multicolumn,
Multicolumn Indexes
on functions,
Functional Indexes
partial,
Partial Indexes
R-tree,
Index Types
unique,
Unique Indexes
inet (data type),
inet
inheritance,
Inheritance
,
General Operation
initlocation,
Alternative Locations
input function,
Extending SQL: Types
INSERT,
Populating a Table With Rows
installation,
Installation Instructions
on Windows,
Requirements
,
Installation on Windows
int2
see smallint
int4
see integer
int8
see bigint
integer,
Numeric Types
internal,
Pseudo-Types
intersection,
Combining Queries
interval,
Intervals
IRIX,
Compiling and Linking Dynamically-Loaded Functions
IS NULL,
General Operation
isolation levels,
Transaction Isolation
read committed,
Read Committed Isolation Level
read serializable,
Serializable Isolation Level
J
join,
Joins Between Tables
outer,
Joins Between Tables
self,
Joins Between Tables
joins,
Joined Tables
cross,
Joined Tables
left,
Joined Tables
natural,
Joined Tables
outer,
Joined Tables
K
Kerberos,
Kerberos authentication
key words
list of,
SQL Key Words
syntax,
Identifiers and Key Words
L
label
column,
Column Labels
table,
Table and Column Aliases
language_handler,
Pseudo-Types
large object,
Large Objects
LC_COLLATE,
Creating a Database Cluster
ldconfig,
Shared Libraries
length
binary strings
see binary strings, length
character strings
see character strings, length
libperl,
Requirements
libpgtcl,
pgtcl - Tcl Binding Library
libpq,
libpq - C Library
libpq-fe.h,
Database Connection Functions
libpq-int.h,
Database Connection Functions
,
Building Libpq Programs
libpython,
Requirements
like,
LIKE
limit,
LIMIT and OFFSET
line,
Line Segment
Linux,
Starting the Database Server
,
Shared Memory and Semaphores
,
Compiling and Linking Dynamically-Loaded Functions
locale,
Creating a Database Cluster
,
Locale Support
locking,
Explicit Locking
log files,
Log File Maintenance
M
MAC address
see macaddr
macaddr (data type),
macaddr
MacOS X,
Shared Memory and Semaphores
,
Compiling and Linking Dynamically-Loaded Functions
make,
Requirements
MANPATH,
Environment Variables
see also man pages
max,
Aggregate Functions
MD5,
Password authentication
min,
Aggregate Functions
multibyte,
Multibyte Support
N
names
qualified,
Creating a Schema
unqualified,
The Schema Search Path
namespaces,
Schemas
,
General Operation
NetBSD,
Starting the Database Server
,
Shared Memory and Semaphores
,
Compiling and Linking Dynamically-Loaded Functions
network
addresses,
Network Address Data Types
nextval,
Sequence-Manipulation Functions
nonblocking connection,
Database Connection Functions
,
Asynchronous Query Processing
nonrepeatable read,
Transaction Isolation
not
operator,
Logical Operators
not in,
Subquery Expressions
notice processor,
libpq Control Functions
NOTIFY,
Asynchronous Notification
,