diff/push: Support for tables using Percona Server column compression

This commit adds the ability to diff tables that use Percona Server 5.6.33+
column compression, with or without predefined dictionary.

Author: evanelias

doc/requirements.md

@@ -98,7 +98,6 @@ Skeema can CREATE or DROP tables using these features, but cannot ALTER them. Th
 * sub-partitioning (two levels of partitioning in the same table)
 * some features of non-InnoDB storage engines
 * spatial indexes
-* column-level compression, with or without predefined dictionary (Percona Server 5.6.33+)
 * CHECK constraints (MySQL 8.0.16+ / Percona Server 8.0.16+ / MariaDB 10.2+)
 
 You can still ALTER these tables externally from Skeema (e.g., direct invocation of `ALTER TABLE` or `pt-online-schema-change`). Afterwards, you can update your schema repo using `skeema pull`, which will work properly even on these tables.

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/opencontainers/runc v1.0.0-rc5 // indirect
 	github.com/sirupsen/logrus v1.4.2
 	github.com/skeema/mybase v1.0.8
-	github.com/skeema/tengo v0.9.2-0.20200213072835-ad11f1fd8273
+	github.com/skeema/tengo v0.9.2
 	golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
 	golang.org/x/lint v0.0.0-20190409202823-959b441ac422
 	golang.org/x/sync v0.0.0-20190423024810-112230192c58

go.sum

@@ -71,8 +71,8 @@ github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/skeema/mybase v1.0.8 h1:eqtxi5FfphYhosEEeHBsYf/9oXfwjCZ8fMnpGJ+AdxI=
 github.com/skeema/mybase v1.0.8/go.mod h1:09Uz3MIoXTNCUZWBeKDeO8SUHlQNjIEocXbc1DFvEKQ=
-github.com/skeema/tengo v0.9.2-0.20200213072835-ad11f1fd8273 h1:r1DFjo8S+GNXxJE2huc7IxLtHHMj3ZfvoBK4nEGoS9U=
-github.com/skeema/tengo v0.9.2-0.20200213072835-ad11f1fd8273/go.mod h1:2DO0zUSjb9iItFrxplI1khgsV0FCuohx6xLcTwDtRM4=
+github.com/skeema/tengo v0.9.2 h1:QeUCO/8NaWuXbVC8PCijdNEyAh0mBzwsp799vIFG7XA=
+github.com/skeema/tengo v0.9.2/go.mod h1:2DO0zUSjb9iItFrxplI1khgsV0FCuohx6xLcTwDtRM4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=

skeema.go

@@ -16,7 +16,7 @@ schema to the filesystem, and apply online schema changes by modifying files.`
 
 // Globals overridden by GoReleaser's ldflags
 var (
-	version = "1.4.1"
+	version = "1.4.2"
 	commit  = "unknown"
 	date    = "unknown"
 )

vendor/github.com/skeema/tengo/README.md

@@ -75,7 +75,7 @@ github.com/pmezard/go-difflib/difflib
 github.com/sirupsen/logrus
 # github.com/skeema/mybase v1.0.8
 github.com/skeema/mybase
-# github.com/skeema/tengo v0.9.2-0.20200213072835-ad11f1fd8273
+# github.com/skeema/tengo v0.9.2
 github.com/skeema/tengo
 # golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
 golang.org/x/crypto/ssh/terminal