postgresql bytea size

The Bytea field type in PostgreSQL can store data in binary form, and the benefit is that files stored in a Web site directory can be stored in a database, and the downside is that if the file is too large, it can result in a large increase in the

Originally wanted to find the PostgreSQL database occupy Space Command found this blog, found that the provision of severalcommand is useful (but there are several senses that are sucks.) =), so he translated it over. In addition this article is 09,

1. First knowledge of PostgreSQL large objectA colleague feels very slow when recovering from a file backed up using Pg_dump (using the plain format), so let me analyze what the reason is.I got his. bak file, and the file has 1 more than one G. To

Data type of PostgreSQL databasePostgreSQL supports a variety of data types, including integer types, floating-point types, Arbitrary precision values, datetime types, string types, binary types, Boolean types, and array types.1, Integer

Unsolved. In the study   Solution: Data Type problems: Table 8-4. Character Type Name Description Character varying (N), Varchar (N) Variable Length with length restrictions Character (N), Char (N) Fixed Length, insufficient fill blank Text Variable

// There are mainly the following two system tables. pg_largeobject_metadata records the permissions mainly. Only pg_largeobject is useful. CATALOG (FIG, 2995) { Oid lomowner;/* OID of the largeobject owner */ # Ifdef CATALOG_VARLEN/*

I had to learn mysql for a month in my last job, and soon I forgot a lot of things. Now I want to learn more about sqlite because of my work,Data Types supported by Sqlite3 NULL,INTEGER,REAL,TEXT,BLOB And:Smallint is an integer of 16 bits.An integer

One background 1 signed tinyint using 2 signed tinyint extended two unsigned tinyint design and encoding 1 unsigned tinyint design 2 unsigned tinyint coding three encountered problems 1 the compilation was unsuccessful when compiling the expansion