Revert "Revert "Postgres testing complete""

This reverts commit 525ad43.

pgsql/certs/ca.crt

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDBzCCAe+gAwIBAgIRAJRPMz8rSwMm70KuJaqPRJQwDQYJKoZIhvcNAQELBQAw
+KzESMBAGA1UEChMJQ29ja3JvYWNoMRUwEwYDVQQDEwxDb2Nrcm9hY2ggQ0EwHhcN
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+sBOq+fCJQ3ArgKg=
+-----END CERTIFICATE-----

pgsql/certs/ca.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpQIBAAKCAQEA9Ag47smCqVLfB+RsFXAeXhZeuqUVdikhhE4dO8cQJsqV7KRT
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+muxSVVGr5ROOxAJEddsT+CBg1d/7GsrZoOFmtP+I3SIdxpQ7Ylkah6M=
+-----END RSA PRIVATE KEY-----

pgsql/certs/certs.md

@@ -0,0 +1,4 @@
+# ./certs
+
+These certificates are for testing purposes only. These are not
+secrets as they are not to be used in production.

pgsql/certs/client.root.crt

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDADCCAeigAwIBAgIRAIeKSPmjm52+5nhgETTc1FQwDQYJKoZIhvcNAQELBQAw
+KzESMBAGA1UEChMJQ29ja3JvYWNoMRUwEwYDVQQDEwxDb2Nrcm9hY2ggQ0EwHhcN
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+JlcCMlf0M9/JS5GIJntGq1uetAstTXUhSZIofO4JXdhOUvp1h3XPg9JlAJAhlM5u
+OkHwig==
+-----END CERTIFICATE-----

pgsql/certs/client.root.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEowIBAAKCAQEArs+f2BsRPGAOYXNIn9mecq4BG1B8KqCDvr0sfo/YnvaAwsxO
+4X//lNXsy5V1pg8+cWbd06Et4Qzk0Yr2BooEjD2SjV+FUHU1gosHxYT4Gb+082ps
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+UIgvm/iMGM5HjiENrDwSW7CdLJSYuARkzEUSjNCJaRzwQ5ci/xvB
+-----END RSA PRIVATE KEY-----

pgsql/certs/server.crt

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDMzCCAhugAwIBAgIQfSvwIKDbRW7QSuUDBqt5JDANBgkqhkiG9w0BAQsFADAr
+MRIwEAYDVQQKEwlDb2Nrcm9hY2gxFTATBgNVBAMTDENvY2tyb2FjaCBDQTAeFw0x
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+K4kuKGxQ0SCcfl+lRL4RuFJdxxXrKImrVI7+wnG5s6Qqws0gSLHy8S5OnN6PVstg
+J4buR2pBnw==
+-----END CERTIFICATE-----

pgsql/certs/server.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpQIBAAKCAQEAuI1GTg1zI0N7XlHJwy6h83FaYsrPUMCR9jK6nbLmaPXCAtdN
+SqT+GJCV7lwARuSdEJeR4xBzWnCHi5l9If5OgFvsRL88pNq83Eemh7ocee0BoOsw
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+Izyt2sd4xSXNO0TH7GFh3v0CgYEAqx6chNr4hoVw3dgsFye1u+VbIttb8sDGmexI
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+BKAq95UCgYEAmQ7dewi0oEiXhF+EVy7l1rPbvXyxJv8iT0mzW/P61gmo+PaA8HJy
+mekUd0ukI741OLn58Td/uVZNlUEMKcialBrjrvFEdxAJgNiOezdgdIr12eXfngG1
+9xvKzDVaNdSO/y2qWZ2Ud0WDo23xzgRv8L8JiIYOpr0BK7PLPzbg/9k=
+-----END RSA PRIVATE KEY-----

pgsql/readme.md

@@ -1,5 +1,11 @@
 # Overview
 
+This is a Postgres compatible version of [WUID](https://github.com/edwingeng/wuid).
+
+- WUID is a unique number generator, but it is not a UUID implementation.
+- WUID is 10-135 times faster than UUID and 4600 times faster than generating unique numbers with Redis.
+- WUID generates unique 64-bit integers in sequence. The high 24 bits are loaded from a data store. By now, Redis, MySQL, and MongoDB are supported.
+
 # Install
 ``` bash
 go get -u github.com/edwingeng/wuid/...
@@ -15,6 +21,13 @@ dep ensure -add github.com/edwingeng/wuid/mongo
 dep ensure -add github.com/edwingeng/wuid/callback
 ```
 
+**_CockroachDB_**
+
+[CockroachDB](https://www.cockroachlabs.com) uses the same connection driver as PostgreSQL,
+but this package has not been tested with CockroachDB yet; however support is planned. I
+expected it will not work properly in its current form because CockroachDB ```serial``` data
+type is not sequential.
+
 # Usage Examples
 
 ### PostgreSQL
@@ -47,4 +60,14 @@ CREATE TABLE wuid
     h serial NOT NULL UNIQUE,
     x int NOT NULL PRIMARY KEY DEFAULT '0'
 );
+```
+
+Test Postgres Docker setup
+> This will setup Docker Postgres:Alpine container with TLS, run tests and tear down Docker container.
+```bash
+# Run from package ../wuid/pgsql directory
+## Make executable: 
+chmod +x testdb.sh
+## Run: 
+./testdb.sh
 ```

pgsql/testdb.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+## This will setup Docker Postgres:Alpine container, run test and tear down Docker container.
+## Make executable: $ chmod +x testdb.sh
+## Run: $ ./testdb.sh
+mkdir db
+
+docker run --name wuid-postgres -e POSTGRES_PASSWORD=mysecretpassword -p 5432:5432 -d -v $(pwd)/db:/var/lib/postgresql/data postgres:alpine -c 'ssl=on'
+
+sleep 30s
+
+docker stop wuid-postgres
+
+sleep 1s
+
+cp certs/server.crt db/server.crt && cp certs/server.key db/server.key
+chmod 0600 db/server.crt && chmod 0600 db/server.key
+docker restart wuid-postgres 
+
+sleep 3s
+
+go test -cover -bench=.
+
+docker kill wuid-postgres && docker rm wuid-postgres
+
+rm -rf db

pgsql/wuid.go

@@ -30,6 +30,9 @@ type WUID struct {
 	w *internal.WUID
 }
 
+// DefaultTimeout for db connection is 15 seconds
+const DefaultTimeout int = 15
+
 // NewWUID creates a new WUID instance.
 func NewWUID(tag string, logger Logger, opts ...Option) *WUID {
 	var opts2 []internal.Option
@@ -97,13 +100,7 @@ func (this *WUID) LoadH24FromPg(host, user, pass, dbName, table string) error {
 	}
 
 	// Create connection string
-	dsn := "postgres://"
-	dsn += user
-	if len(pass) > 0 {
-		dsn += ":" + pass
-	}
-	dsn += "@" + host
-	dsn += "/" + dbName
+	dsn := fmt.Sprintf("host=%s user=%s password='%s' dbname=%s connect_timeout=%v", host, user, pass, dbName, DefaultTimeout)
 
 	return this.loadH24FromPg(dsn, table)
 }