Migrating Uber from MySQL to PostgreSQL

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Migrating Uber from MySQL to PostgreSQL Evan Klitzke Uber, Inc. March 13, 2013 Evan Klitzke (Uber, Inc.) Migrating Uber from MySQL to PostgreSQL March 13, 2013 1 / 59
Page 2 and 3: Outline 1 Background 2 Code Changes
Page 4 and 5: Background Background (cont.) All o
Page 6 and 7: Obstacles Background Minimizing dow
Page 8 and 9: Work Distribution Background The wo
Page 10 and 11: Background “Replication” Plan T
Page 12 and 13: Background Serialization Problem T
Page 14 and 15: Downtime Plan Background The altern
Page 16 and 17: Conversion Background Initial attem
Page 18 and 19: Background MySQLisms (escaping) Tab
Page 20 and 21: Background MySQLisms (booleans) In
Page 22 and 23: Attempt 1 Background Lesson learned
Page 24 and 25: XML Attempt Background Web develope
Page 26 and 27: XML Attempt Background Another nice
Page 28 and 29: XML Attempt Background Except a few
Page 30 and 31: XML Attempt Background Solution: I
Page 32 and 33: Outline 1 Background 2 Code Changes
Page 34 and 35: Major Errors Code Changes Most prob
Page 36 and 37: Truncation Code Changes In MySQL, o
Page 38 and 39: Code Changes Missing Required Value
Page 40 and 41: Implicit Ordering Code Changes In M
Page 42 and 43: Code Changes Implicit Ordering (con
Page 44 and 45: Code Changes Implicit Ordering (con
Page 46 and 47: GROUP BY Code Changes In MySQL you
Page 48 and 49: Case Sensitivity Code Changes By de
Page 50 and 51: Case Sensitivity Code Changes My ad
Page 52 and 53:
Outline 1 Background 2 Code Changes
Page 54 and 55:
Downtime Plan The Actual Migration
Page 56 and 57:
The Problem The Actual Migration Du
Page 58 and 59:
The Actual Migration The Second Att
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Migrating Uber from MySQL to PostgreSQL

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