Reformat Postgres version checks to reflect their structure

Author: matthewd

activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb

@@ -288,7 +288,7 @@ def reset_pk_sequence!(table, pk = nil, sequence = nil) # :nodoc:
             quoted_sequence = quote_table_name(sequence)
             max_pk = query_value("SELECT MAX(#{quote_column_name pk}) FROM #{quote_table_name(table)}", "SCHEMA")
             if max_pk.nil?
-              if database_version >= 100000
+              if database_version >= 10_00_00
                 minvalue = query_value("SELECT seqmin FROM pg_sequence WHERE seqrelid = #{quote(quoted_sequence)}::regclass", "SCHEMA")
               else
                 minvalue = query_value("SELECT min_value FROM #{quoted_sequence}", "SCHEMA")

activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

@@ -183,7 +183,7 @@ def supports_index_sort_order?
       end
 
       def supports_partitioned_indexes?
-        database_version >= 110_000 # >= 11.0
+        database_version >= 11_00_00 # >= 11.0
       end
 
       def supports_partial_index?
@@ -239,14 +239,14 @@ def supports_insert_returning?
       end
 
       def supports_insert_on_conflict?
-        database_version >= 90500 # >= 9.5
+        database_version >= 9_05_00 # >= 9.5
       end
       alias supports_insert_on_duplicate_skip? supports_insert_on_conflict?
       alias supports_insert_on_duplicate_update? supports_insert_on_conflict?
       alias supports_insert_conflict_target? supports_insert_on_conflict?
 
       def supports_virtual_columns?
-        database_version >= 120_000 # >= 12.0
+        database_version >= 12_00_00 # >= 12.0
       end
 
       def index_algorithms
@@ -398,7 +398,7 @@ def supports_foreign_tables?
       end
 
       def supports_pgcrypto_uuid?
-        database_version >= 90400 # >= 9.4
+        database_version >= 9_04_00 # >= 9.4
       end
 
       def supports_optimizer_hints?
@@ -531,7 +531,7 @@ def build_insert_sql(insert) # :nodoc:
       end
 
       def check_version # :nodoc:
-        if database_version < 90300 # < 9.3
+        if database_version < 9_03_00 # < 9.3
           raise "Your version of PostgreSQL (#{database_version}) is too old. Active Record supports PostgreSQL >= 9.3."
         end
       end