Update installation instruction for virtual envs

[sqlconvert.git] / docs / mysql2sql.rst

diff --git a/docs/mysql2sql.rst b/docs/mysql2sql.rst
index fdd17d0856bff22843e397a57647ab462464e2ef..e51ea60404c435b1f5d639dbed8534244a2ee535 100644 (file)
--- a/docs/mysql2sql.rst
+++ b/docs/mysql2sql.rst
@@ -2,10 +2,15 @@ mysql2sql
 =========
 
 This is mysql2sql, a mysql to sql converter. It is primary intended to
-convert mysqldump (especially with extended INSERT syntax) to standard
-SQL to load at least to PostgreSQL or SQLite.
+convert mysqldump (especially with extended INSERT syntax) to standard SQL
+to load at least to PostgreSQL or SQLite.
+
+The program removes /\*! directives \*/, unquotes names quoted with
+backticks, quote non-lowercase names with double quotes, unescapes strings
+and escapes them to a different quoting style, and splits extended INSERTs
+into a series of plain INSERTs separated by newlines. Everything else is
+passed unmodified.
 
-The program is in its initial phase and currently cannot do much.
 
 .. highlight:: none
 
@@ -17,7 +22,7 @@ mysql2sql
 
 Usage::
 
-    mysql2sql [-e encoding] [-E output_encoding] [infile] [[-o] outfile]
+    mysql2sql [-e encoding] [-E output_encoding] [-m/-p/-s] [infile] [[-o] outfile]
 
 Options::
 
@@ -27,12 +32,23 @@ Options::
                            separate output encoding, default is the same as
                            `-e` except for console; for console output charset
                            from the current locale is used
+    -m, --mysql            MySQL/MariaDB quoting style
+    -p, --pg, --postgres   PostgreSQL quoting style
+    -s, --sqlite           Generic SQL/SQLite quoting style (default)
     -P, --no-pbar          Inhibit progress bar
     infile                 Input file, stdin if absent or '-'
     -o, --outfile outfile  Output file, stdout if absent or '-'
 
-If stderr is connected to the console the program displays a text mode progress
-bar. Option `-P/--no-pbar` inhibits it.
+Options `-m/-p/-s` change quoting style. `-m` sets MySQL quoting style;
+it's added to use the program in the following scenario: convert MySQL
+dumps with extended INSERTs to SQL with plain INSERTS suitable to be fed
+back to MySQL. `-p` sets PostgreSQL quoting style; it's like MySQL with
+additional `E''-style quoting
+<https://www.postgresql.org/docs/9.1/static/sql-syntax-lexical.html#SQL-SYNTAX-STRINGS-ESCAPE>`_.
+`-s` sets generic SQL/SQLite quoting style; this is the default.
+
+If stderr is connected to the console the program displays a text mode
+progress bar. Option `-P/--no-pbar` inhibits it.
 
 Option `-o` is useful when infile is absent (input is redirected), for
 example::