From 4b95a83e27bc3089df3505d65772cc6f43689a61 Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Mon, 13 Aug 2018 13:18:41 +0200
Subject: [PATCH] [#7757] Improve SQLite LPAD() and RPAD() emulation

---
 jOOQ/src/main/java/org/jooq/impl/Lpad.java | 12 +-----------
 jOOQ/src/main/java/org/jooq/impl/Rpad.java | 12 +-----------
 2 files changed, 2 insertions(+), 22 deletions(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/Lpad.java b/jOOQ/src/main/java/org/jooq/impl/Lpad.java
index 6f980a3e86..75ec23a391 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Lpad.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Lpad.java
@@ -89,17 +89,7 @@ final class Lpad extends AbstractFunction<String> {
             // http://stackoverflow.com/questions/6576343/how-to-simulate-lpad-rpad-with-sqlite
             case SQLITE: {
                 return DSL.field(
-                    "substr(" +
-                      "replace(" +
-                        "replace(" +
-                          "substr(" +
-                            "quote(" +
-                              "zeroblob((({1} - length({0}) - 1 + length({2})) / length({2}) + 1) / 2)" +
-                            "), 3" +
-                          "), '\''', ''" +
-                        "), '0', {2}" +
-                      "), 1, ({1} - length({0}))" +
-                    ") || {0}",
+                    "substr(replace(hex(zeroblob({1})), '00', {2}), 1, {1} - length({0})) || {0}",
                     String.class,
                     field, length, character);
             }
diff --git a/jOOQ/src/main/java/org/jooq/impl/Rpad.java b/jOOQ/src/main/java/org/jooq/impl/Rpad.java
index 45dcebf743..3847d88742 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Rpad.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Rpad.java
@@ -87,17 +87,7 @@ final class Rpad extends AbstractFunction<String> {
             // http://stackoverflow.com/questions/6576343/how-to-simulate-lpad-rpad-with-sqlite
             case SQLITE:
                 return DSL.field(
-                    "{0} || substr(" +
-                             "replace(" +
-                               "replace(" +
-                                 "substr(" +
-                                   "quote(" +
-                                     "zeroblob((({1} - length({0}) - 1 + length({2})) / length({2}) + 1) / 2)" +
-                                   "), 3" +
-                                 "), '\''', ''" +
-                               "), '0', {2}" +
-                             "), 1, ({1} - length({0}))" +
-                           ")",
+                    "{0} || substr(replace(hex(zeroblob({1})), '00', {2}), 1, {1} - length({0}))",
                     String.class,
                     field, length, character);