Migrating Uber from MySQL to PostgreSQL

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Outline 1 Background 2 Code Changes 3 The Actual Migration
Code Changes Code Changes The other part of a project like this, is making the code work. Evan Klitzke (Uber, Inc.) Migrating Uber from MySQL to PostgreSQL March 13, 2013 33 / 59
Page 1 and 2: Migrating Uber from MySQL to Postgr
Page 3 and 4: Background Background Uber is a mob
Page 5 and 6: The Objective Background The object
Page 7 and 8: Obstacles cont. Background Addition
Page 9 and 10: Plan of Attack Background To do a m
Page 11 and 12: Background “Replication” Plan,
Page 13 and 14: Background Serialization Problem Th
Page 15 and 16: Conversion Background OK, how much
Page 17 and 18: Conversion Background It turns out
Page 19 and 20: Background MySQLisms (quoting) Quot
Page 21 and 22: Attempt 1 Background My first attem
Page 23 and 24: XML Attempt Background Next I disco
Page 25 and 26: XML Attempt Background New plan of
Page 27 and 28: XML Attempt Background Initial test
Page 29 and 30: XML Attempt Background It turns out
Page 31: xml2pgcopy Background The final imp
Page 35 and 36: Boolean Errors Code Changes As note
Page 37 and 38: Timezone Issues Code Changes Produc
Page 39 and 40: ENUMs Code Changes In MySQL, ENUMs
Page 41 and 42: Code Changes Implicit Ordering (con
Page 47 and 48: Code Changes GROUP BY (cont.) MySQL
Page 49 and 50: Case Sensitivity Code Changes Case
Page 51 and 52: Code Changes SQLAlchemy autoflush A
Page 53 and 54: The Actual Migration Production Set
Page 55 and 56: First Attempt The Actual Migration
Page 57 and 58: Interim The Actual Migration In ret
Page 59: The Actual Migration xml2pgcopy, re

Migrating Uber from MySQL to PostgreSQL

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