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how to smoothly sync existing database with prisma...
# orm-help
u
how to smoothly sync existing database with prisma without losing data?
👀 2
r
Hi 👋 Have a look at this workflow specified in the docs for integrating Migrate with an existing database.
u
how to resolve when encounter these errors? ⚠️  There might be data loss when applying the changes:   • You are about to alter the column 
created_at
on the 
threaddislike
table, which contains 14 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
threaddislike
table, which contains 14 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
thread
on the 
threaddislike
table, which contains 14 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
user
on the 
threaddislike
table, which contains 14 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
postlike
table, which contains 42 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
postlike
table, which contains 42 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
like
on the 
postlike
table, which contains 42 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
post
on the 
postlike
table, which contains 42 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
user
on the 
postlike
table, which contains 42 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
id
on the 
settings
table, which contains 20 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
threadlike
table, which contains 82 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
threadlike
table, which contains 82 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
thread
on the 
threadlike
table, which contains 82 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
user
on the 
threadlike
table, which contains 82 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
redenvelopepost
table, which contains 1 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
redenvelopepost
table, which contains 1 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
post
on the 
redenvelopepost
table, which contains 1 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
receiver
on the 
redenvelopepost
table, which contains 1 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
red_envelope_thread
on the 
redenvelopepost
table, which contains 1 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.
• You are about to alter the column 
post
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
read
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
receiver
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
replier
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
sender
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
thread
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
message
table, which contains 263 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
author
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
category
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
deleted
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
dislikes
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
favorites
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
highlighted
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
id
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
last_post
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
last_reply
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
last_reply_at
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
likes
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
locked
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
login_required
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
replies
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.
• You are about to alter the column 
created_at
on the 
file
table, which contains 37 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
file
table, which contains 37 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
user
on the 
file
table, which contains 37 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
follower
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
follower
on the 
follower
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
id
on the 
follower
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
user
on the 
follower
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
favorite
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
favorite
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
owner
on the 
favorite
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
thread
on the 
favorite
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
favorite
table, which contains 25 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
created_at
on the 
weixinpay
table, which contains 10 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
weixinpay
table, which contains 10 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
id
on the 
admin
table, which contains 1 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
author
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
deleted
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
dislikes
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
id
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
likes
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
parent
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.
• You are about to alter the column 
sticky
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
updated_at
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
visits
on the 
thread
table, which contains 300 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
weixinuserbinding
table, which contains 13 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
weixinuserbinding
table, which contains 13 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
weixinuserbinding
table, which contains 13 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
user
on the 
weixinuserbinding
table, which contains 13 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
category
on the 
categoryparent
table, which contains 164 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
categoryparent
table, which contains 164 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
categoryparent
table, which contains 164 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
parent
on the 
categoryparent
table, which contains 164 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
categoryparent
table, which contains 164 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
user
on the 
categoryparent
table, which contains 164 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
drawn
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
id
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
paid
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
post
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
receiver
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
sender
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
thread
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
tip
table, which contains 33 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.
• You are about to alter the column 
thread
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
post
table, which contains 294 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
created_at
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
drawn
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
id
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
paid
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
released
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
thread
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
user
on the 
redenvelopethread
table, which contains 9 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
category
table, which contains 162 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
id
on the 
category
table, which contains 162 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
official
on the 
category
table, which contains 162 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
updated_at
on the 
category
table, which contains 162 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
user
on the 
category
table, which contains 162 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
active
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
blocked
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
collect_tag_count
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
collect_topic_count
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
created_at
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
followers
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.
• You are about to alter the column 
followings
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
id
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
replies
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
retrieve_time
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
.   • You are about to alter the column 
score
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
starred
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Boolean
.   • You are about to alter the column 
threads
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
Int
.   • You are about to alter the column 
updated_at
on the 
user
table, which contains 1158 non-null values. The data in that column will be cast from 
Unsupported("")
to 
DateTime
. ✔️ Do you want to ignore the warning(s)? … yes Error: near ")": syntax error    0: sql_migration_connector:sql database step applier:apply_migration              at migration-engine/connectors/sql-migration-connector/src/sql_database_step_applier.rs:11    1: migration_core:api:SchemaPush              at migration-engine/core/src/api.rs:184
r
Ahh I see. This involves Unsupported data types so it would be great if you can create an issue here with your schema and the above messages so that we can look into this 🙂
u
ok
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