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Update sequences.mdx #6151

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Update sequences.mdx
matthew123987 Oct 14, 2024
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Update sequences.mdx
matthew123987 Oct 14, 2024
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Update sequences.mdx
matthew123987 Oct 14, 2024
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Update text to clarify whats being updated post-restore
djw-m Oct 29, 2024
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7 changes: 6 additions & 1 deletion product_docs/docs/pgd/5/sequences.mdx
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Expand Up @@ -52,7 +52,8 @@ There are various possible algorithms for global sequences:
SnowflakeId sequences generate values using an algorithm that doesn't require
inter-node communication at any point. It's faster and more robust and has the
useful property of recording the timestamp when the values were
created.
created. Snowflake sequences are generally the preferred sequence option if the
application can support it.

SnowflakeId sequences have the restriction that they work only for 64-bit BIGINT
datatypes and produce values up to 19 digits long. This might be too long for
Expand Down Expand Up @@ -229,6 +230,10 @@ support renaming `galloc` sequences or moving them to another namespace or
renaming the namespace that contains a `galloc` sequence. Be
mindful of this limitation while designing application schema.

Additionally, after restoring a node from a backup, all galloc sequences must manually have
their next value set to the maximum value of the related column.
See ["Set a new start value for the sequence"](#2-set-a-new-start-value-for-the-sequence).

#### Converting a local sequence to a galloc sequence

Before transforming a local sequence to galloc, you need to take care of several
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