ready to publish

Author: Frederic de Zorzi

Cargo.lock

@@ -1,5 +1,5 @@
 [package]
-name = "pg_dump_tool"
+name = "pg-dump2insert"
 version = "0.1.0"
 authors = ["Frederic de Zorzi <fredz@pimentech.fr>"]
 

Cargo.toml

@@ -1,9 +1,10 @@
-PG-Inserts : Get INSERT commands from PostgreSQL dump with COPY statements
-==========================================================================
-
-PostgreSQL's pg_dump with COPY statements is the most effective way to dump your
-database, but is it difficult to grep in to recover specific data.
+pg-dump2insert : Fast PostgreSQL COPY dump to INSERT commands converter
+=======================================================================
 
+PostgreSQL's pg_dump with *COPY* statements format is the most effective way to
+backup and restore your database. However for retrieving specific data or to
+inject dump into non-PostgreSQL database, *INSERT* commands are far more
+convenient. This tool simply converts *COPY* dumps to *INSERT* dumps.
 
 Installation
 ------------
@@ -17,16 +18,22 @@ it, then type::
 Usage
 -----
 
-Just pipe dump output to pg-inserts::
+Just pipe dump output to pg-dump2insert::
 
-  cat dump.sql | pg-inserts
+  cat dump.sql | pg-dump2insert
 
 If the dump file is a binary archive, use pg_restore::
 
-  pg_restore dump.db | pg-inserts
+  pg_restore dump.db | pg-dump2insert
+  pg_restore -t tablenamedump.db | pg-dump2insert
 
 
 Notice
 ------
 
-A Python version is also provided (7.5 times slower than Rust version).
+The only difference with "--inserts" dumps is that all numeric values are quoted
+in INSERTs (which is permitted in PostgreSQL), i.e.::
+
+  INSERT INTO tablename (id, ...) VALUES ('2', ...);
+
+A (5 times slower) Python version is also provided.

README.rst

@@ -1,22 +1,26 @@
 #!/usr/bin/env python
 import fileinput
 import re
-
-mode = "clone"
 start_table_pattern = re.compile("^COPY (\w+) \(([\w, ]+)\) FROM stdin;")
+table_name = None
+fields = None
+insert_mode = False
+
 for line in fileinput.input():
-    if mode == "clone":
+    if insert_mode:
+        if line == "\\.\n":
+            insert_mode = False
+            continue
+        values = [ v == '\\N' and 'NULL' or "'%s'" % v \
+                   for v in line[:-1].replace("'", "''").split("\t") ]
+        print "INSERT INTO %s (%s) VALUES (%s);" \
+            % (table_name, fields, ", ".join(values))
+    else:
         start_table = start_table_pattern.match(line)
         if start_table:
             table_name = start_table.group(1)
             fields = start_table.group(2)
-            mode = "insert"
+            insert_mode = True
             continue
         print line,
-    else:
-        if line == "\\.\n":
-            mode = "clone"
-            continue
-        values = [ v == '\\N' and 'NULL' or "'%s'" % v for v in line[:-1].split("\t") ]
-        print "INSERT INTO %s (%s) VALUES (%s);" % (table_name, fields, ", ".join(values))
 

python/pg_dump2insert.py python/pg-dump2insert.pypython/pg_dump2insert.py renamed to python/pg-dump2insert.py

@@ -19,7 +19,7 @@ fn main() {
             else {
                 let mut values = String::new();
                 line.pop();
-                for s in line.split("\t") {
+                for s in line.replace("'", "''").split("\t") {
                     if s == "\\N" {
                         values += "NULL, ";
                     } else {